One and Two Step Equations

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 for x in the following equation:

x + 7 = 12

• x = 5

• x = 19

• x = 4

• x = 84

Solve for p in the following equation:

4p = 16

• p = 12

• p = 64

• p = 3

• p = 4

What is the solution of 6d = 24

• d = 4

• d = 5

• d = 18

• d = 144

Mathematical Equivalence

ON

Find the solution:
10 = 4x - 2

• x = 3

• x = 2

• x = -3

• x = -2

Solve:

3(x - 2) = 18

• 6.7

• 4

• 8

• -4

• none of the above

What is the result of solving for the variable?

• x = -12

• x = 3

• x = -3

• x = 12

Mathematical Equivalence

ON

Solve the equation:
-5x = 25

• x = 20

• x = -20

• x = -5

• x = 5