Sarah solved the equation. Her work is shown below.
Identify and explain Sarah’s error in solving the equation. __________
Re-solve the equation to find the correct solution. __________
Question 4
4.
Select ALL expressions that are equivalent to 4(x+ 3) - 10 + 6x.
Question 5
5.
Emma, Luke and Noah each wrote expressions to represent their hourly earnings for an after-school job for a week where h represents the number of hours worked.
How many hours will Emma and Noah have to work in order to make the same amount of money in one week?
_______ hours
Question 6
6.
Select ALL expressions that are equivalent to 3(x + 3) - 12 + 5x.
Question 7
7.
Solve the equation.
n = _______
Question 8
8.
Bob solved the equation. His work is shown below.
Identify and explain Bob’s error in solving the equation. __________
Re-solve the equation to find the correct solution. __________
Question 9
9.
What value of awill the equation 5x + 7 = 5x + a have an infinite number of solutions?
a = _______
Question 10
10.
Solve the equation.
n = _______
Question 11
11.
What is the solution to the following equation?
a = _______
Question 12
12.
Regina, Phil and Joseph each wrote expressions to represent their hourly earnings for an after-school job for a week where h represents the number of hours worked.
How many hours will Regina and Joseph have to work in order to make the same amount of money in one week?
_______ hours
Question 13
13.
Alice solved the equation. Her work is shown below.
Identify and explain Alice’s error in solving the equation. __________
Re-solve the equation to find the correct solution. __________
Question 14
14.
For an annual membership fee of $800, Mr. Jones can join a country club that would allow him to play a round of golf for $25. Without the membership, the country club charges $65 for each round of golf. How many rounds of golf would Mr. Jones have to play for the cost to be less expensive with a membership?
_______rounds
Question 15
15.
Solve the equation.
k = _______
Question 16
16.
Use the expression below to answer the question.
20 + 8y - 9y - 21
Which expression is equivalent?
Question 17
17.
For which value of a will the equation 3x – 2 = 3x – a have an infinite number of solutions?
Question 18
18.
Jenny solved the equation 1 – (2x + 4) = -4x + 5. Her work is shown below.
Identify and explain Jenny’s error in solving the equation. __________
Re-solve the equation 1 – (2x + 4) = -4x + 5 to find the correct solution. __________