Check all the expressions that are equivalent to
Match each set of steps with the property that explains why the two equations are equivalent.
| Stavka koja se može prevući | arrow_right_alt | Odgovarajuća stavka |
|---|---|---|
5x = 4 + 2x 3x = 24 | arrow_right_alt | Not Equal |
-3(2x + 9) = 12 2x + 9 = -4 | arrow_right_alt | Commutative Property |
5x = 20 4 - 5x = 24 | arrow_right_alt | Division Property of Equality |
18 = 3x - 6 + x 18 = 4x - 6 | arrow_right_alt | Subtraction Property of Equality |
5x = 3 - x 5x = -x + 3 | arrow_right_alt | Distributive Property |
16 = 4(9 - x) 16 = 36 - 4x | arrow_right_alt | Combine Like Terms |
Did this student go from the first step to the second step correctly? Select all that are true.
9x = 5x + 4
14x = 4
Did this student go from the first step to the second step correctly? Select all that are true.
-11(x - 2) = 8
x - 2 = 8 + 11
Does this equation have one solution, no solution, or infinitely many solutions?
Makayla is getting a new phone plan. Plan A will charge her $10 per month plus $0.10 per text message. Plan B will charge $35 per month plus $0.05 per text message. How many text messages will make the two plans cost the same for one month?
Makayla is getting a new phone plan. Plan A will charge her $10 per month plus $0.10 per text message. Plan B will charge $35 per month plus $0.05 per text message. When the cost of the two plans for one month is equal, what is that cost?
Bonus:
Find the perimeter of the equilateral triangle.