Solving One-Step Equations Using Addition or Subtraction

a + 4 = 14

• -10

• 10

• -18

• 18

w + 14 = 10

• -24

• 24

• -4

• 4

In the equation
x + 7 = 12
7 is being added to the variable, x. How should you show your work to isolate the variable and solve the equation? 

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

• Add 7 to both sides.
  The solution is x = 19.

• Multiply both sides by 7 The solution is x = 84.

Solve the equation:
20.5 = x + 4

• 16.5

• 16.05

• 24.5

• 24.05

To Solve the Equation Below, you'd
x - 62 = 123

• add 62 to each side

• subtract 62 from each side

• multiply each side by 62

• Add 123 to each side

What would be the best first step to solving the equation?
-18=m+12

• add 18 to both sides

• subtract 18 from both sides

• add 12 to both sides

• subtract 12 from both sides

What would be the first step in solving this equation?

• subtract -10 to both sides

• subtract 20 to both sides

• add 20 to both sides

• add -10 to both sides

To Solve the Equation Below, you would?

x - 62 = 123

• add 62 to each side

• multiply each side by 62

• subtract 62 from each side

• Add 123 to each side

Solve the equation.

x + 9 = -5

Mathematical Equivalence

OFF

What do you need to do to solve this equation?

• add 3 to both sides

• subtract 3 from both sides

• divide both sides by 3

• divide just the right by 3