Simple Two Step Equations

Solve   -5t + 9 = 24

• -3

• 3

• 12

y/3 + 6 = 9

• 15

• 9

• 3

• 12

Solve.  x/4 + 11 = 20

• 9

• 36

• 9/4

• 31/4

Solve.  -7x - 11 = 3

• 2

• 14

• -8

• -2

What was done to solve the equation?
(Line 1)          5x - 8 = 32
(Line 2)          5x = 40
(Line 3)          x = 8

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

• add 8 to both sides, then divide both sides by 40

• subtract 8 from both sides, then divide by 5

• subtract 8 from both sides, then multiply by 5

Where/what is the mistake?

• Line 2 - You should add 12 to both sides.

• Line 4 - You should multiply both sides by the reciprocal.

• Line 4 - You should multiply both sides by the original fraction. 

• Line 5 - There was a calculation error.

To solve the equation -13y = 39 you _______________both sides of the equation by -13.

• multiply

• add

• subtract

• divide

The solution to the equation a - 10 = -4 is 6. To check to see if your solution works you _________________the variable with the solution that you found and then verify that the left side is equal to the right.

• multiply

• replace

• subtract

• add

The equations x + 11 = 13 and x = 2 are______________________ equations because they have the same solution, x = 2.

• opposite

• equivalent

• additive inverses

• positive

To solve the equation n/-5 = 20, you would ___________________both sides of the equation by -5.

• divide

• multiply

• add

• subtract