IM: 6.6.2: Truth and Equations (Lesson)

The equation a + b = c could be true or false.

1

If a is 3, b is 4, and c is 5, is the equation true or false?

1

Find new values of a, b, and c that make the equation true.

1

Find new values of a, b, and c that make the equation false.

The equation x \sdot y = z could be true or false.

1

If x is 3, y is 4, and z is 12, is the equation true or false?

1

Find new values of x, y, and z that make the equation true.

1

Find new values of x, y, and z that make the equation false.

1

Here are three situations and six equations. Which equation best represents each situation?

	After Elena ran 5 miles on Friday, she had run a total of 20 miles for the week. She ran x miles before Friday.	Andre’s school has 20 clubs, which is five times as many as his cousin’s school. His cousin’s school has x clubs.	Jada volunteers at the animal shelter. She divided 5 cups of cat food equally to feed 20 cats. Each cat received x cups of food.
x + 5 = 20
x = 20 + 5
5x = 20
x + 20 = 5
5 \sdot 20 = x
20x = 5

Here are some equations that contain a variable and a list of values. Think about what each equation means and find a solution in the list of values.

1/8

3/7

4/7

3/5

5/3

7/3

0.001

0.1

0.5

1

2

8.5

9.5

16.7

20

400

600

1,400

1

1,000 - a = 400

1

One solution to the equation a + b + c = 10 is a = 2, b = 5 , c = 3 .
How many different whole-number solutions are there to the equation a + b + c = 10? Explain or show your reasoning.

IM: 6.6.2: Truth and Equations (Lesson)

If a is 3, b is 4, and c is 5, is the equation true or false?

Find new values of a, b, and c that make the equation true.

Find new values of a, b, and c that make the equation false.

If x is 3, y is 4, and z is 12, is the equation true or false?

Find new values of x, y, and z that make the equation true.

Find new values of x, y, and z that make the equation false.

Here are three situations and six equations. Which equation best represents each situation?

1,000 - a = 400

One solution to the equation a + b + c = 10 is a = 2, b = 5 , c = 3 .
How many different whole-number solutions are there to the equation a + b + c = 10? Explain or show your reasoning.

If a is 3, b is 4, and c is 5, is the equation true or false?

Find new values of a, b, and c that make the equation true.

Find new values of a, b, and c that make the equation false.

If x is 3, y is 4, and z is 12, is the equation true or false?

Find new values of x, y, and z that make the equation true.

Find new values of x, y, and z that make the equation false.

Here are three situations and six equations. Which equation best represents each situation?

1,000 - a = 400

12.6 = b + 4.1

8c = 8

2/3 \sdot d = 10/9

10e = 1

10 = 0.5f

0.99 = 1 - g

h + \frac{3}{7} = 1

One solution to the equation a + b + c = 10 is a = 2, b = 5 , c = 3 .
How many different whole-number solutions are there to the equation a + b + c = 10? Explain or show your reasoning.

12.6 = b + 4.1

8c = 8

2/3 \sdot d = 10/9

10e = 1

10 = 0.5f

0.99 = 1 - g

h + \frac{3}{7} = 1

IM: 6.6.2: Truth and Equations (Lesson)

IM: 6.6.2: Truth and Equations (Lesson)

If a is 3, b is 4, and c is 5, is the equation true or false?

Find new values of a, b, and c that make the equation true.

Find new values of a, b, and c that make the equation false.

If x is 3, y is 4, and z is 12, is the equation true or false?

Find new values of x, y, and z that make the equation true.

Find new values of x, y, and z that make the equation false.

Here are three situations and six equations. Which equation best represents each situation?

1,000 - a = 400

One solution to the equation a + b + c = 10 is a = 2, b = 5 , c = 3 .How many different whole-number solutions are there to the equation a + b + c = 10? Explain or show your reasoning.

If a is 3, b is 4, and c is 5, is the equation true or false?

Find new values of a, b, and c that make the equation true.

Find new values of a, b, and c that make the equation false.

If x is 3, y is 4, and z is 12, is the equation true or false?

Find new values of x, y, and z that make the equation true.

Find new values of x, y, and z that make the equation false.

Here are three situations and six equations. Which equation best represents each situation?

1,000 - a = 400

12.6 = b + 4.1

8c = 8

2/3 \sdot d = 10/9

10e = 1

10 = 0.5f

0.99 = 1 - g

h + \frac{3}{7} = 1

One solution to the equation a + b + c = 10 is a = 2, b = 5 , c = 3 .How many different whole-number solutions are there to the equation a + b + c = 10? Explain or show your reasoning.

12.6 = b + 4.1

8c = 8

2/3 \sdot d = 10/9

10e = 1

10 = 0.5f

0.99 = 1 - g

h + \frac{3}{7} = 1

One solution to the equation a + b + c = 10 is a = 2, b = 5 , c = 3 .
How many different whole-number solutions are there to the equation a + b + c = 10? Explain or show your reasoning.

One solution to the equation a + b + c = 10 is a = 2, b = 5 , c = 3 .
How many different whole-number solutions are there to the equation a + b + c = 10? Explain or show your reasoning.