Solving Two Step Equations with One Variable

What is the firs step in solving for the variable?

• Distributive property

• Combine Like Terms

• Move the variables to the same side

• Solve for the variable

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.

For which equation is b=4 a solution?

• 4b=1

• b/2=8

• b+4=0

• b-14=-10

Which equation has x = 5 as the solution?

• x + 15 = 10

• 2x = 5

• 2x = 10

Solve: 15 = 2a + 7

Mathematical Equivalence

ON

Find the solution:
10 = 4x - 2

• x = 3

• x = 2

• x = -3

• x = -2

Solve: 13 = 5x - 2

Mathematical Equivalence

ON

Solve:

3(x - 2) = 18

• 6.7

• 4

• 8

• -4

• none of the above

Solve: 8 = -6x - 4

Mathematical Equivalence

OFF