Solving equations

What step do you do to solve the equation x + 5 = 7?

• Add 7 to both sides

• Add 5 to both sides

• Subtract 5 from both sides

• multiply by 5 on both sides

What it the next step to solve k - 4 = 3

• add 4 to both sides of the equal sign

• subtract 4 from both sides of the equal sign

• Subtract 3 from both sides of the equal sign

• Add 3 to both sides of the equal sign

Solve for m in the equation m + 7 = 17

• m =-4

• m = 10

• m = 24

• m = 20

Solve for the variable in the equation h - 21 = 21

• h = 0

• h = -42

• h = 42

• h = -1

To solve the equation 5x = 30 you would need to

• multiply both sides by 5

• divide both sides by 30

• divide both sides by 5

• add 5 to both sides

To solve the equation -2x = 14

• divide by sides by 14

• divide both sides by -2

• divide both sides by 2

• add 2 to both sides

Solve the equation 7x = 42

• x = 6

• x = 35

• x = -6

• x = 49

Solve the equation -4x = 32

• x = 36

• x = -8

• x = 8

• x = 28

What is the first step to solve the equation

4x - 12 = 12

• add 12 to both sides of the equal sign

• subtract 12 from both sides of the equal sign

• divide by 4 on both sides of the equal sign

• multiply by 4 on both sides of the equal sign

Sarah is solving the equation in the following way;

4x - 12 = 12

+ 12 + 12

4x = 24

What should she do next to finish the problem?

• divide both sides by 4

• add 4 to both sides

• subtract 4 from both sides

• multiply both sides by 4