Pop FLASHCARD: Solving two Step Equations

Front

First step in solving the equation 2x+7=15?

Back

Subtract 7 from both sides

Front

Second step in solving: -3x + 5 = 20

Back

Divide both sides by -3

Front

What was this student's mistake?

Back

They should have subtracted 6 from both sides

Front

Solve: 4(a + 3) = -32

Back

-11

Front

Did Sarah make an error? If so, which is the best description of her error? Options: She didn't distribute correctly. The second step should read 3x - 12 = 24, She didn't distribute correctly. The second step should read -3x - 12 = 24, She didn't distribute correctly. The second step should read -3x + 12 = 24, She didn't make an error.

Back

She didn't distribute correctly. The second step should read -3x + 12 = 24

Front

What was done to solve the equation?

(Line 1) 5x - 8 = 32

(Line 2) 5x = 40

(Line 3) x = 8

Back

add 8 to both sides, then divide both sides by 5

Front

Equation: 4p = 20. How to isolate p?

Back

Divide both sides by 4. The solution is p = 5.

Front

How to isolate x in the equation x + 7 = 12?

Back

Subtract 7 from both sides. The solution is x = 5.

Front

3c + 5 = 23

Back

c = 6

Front

Steps to solve 5b - 6 = 24

Back

Add 6 to both sides and divide both sides by 5