Steps to Solve Two-Step Equations

The steps in solving 5b - 6 = 24 are: 

• Add 6 to both sides and divide both sides by 5

• Add 6 to both sides and multiply both sides by 5

• Subtract 6 from both sides then multiply both sides by 5

• Subtract 6 from both sides then divide both sides by 5

x - 62 = 123
How should you show your work to isolate the variable and solve the equation?

• Add 62 to each side. 

• Subtract 62 from each side.

• Multiply each side by 62.

• Add 123 to each side.

x + 12 = 20

• x = 32

• x = -32

• x = 8

• x = -8

Solve the formula for y.  What is the 2nd step? 

• Divide each side by B. 

• Multiply each side by y. 

• Multiply each side by B. 

• Divide each side by y. 

Mathematical Equivalence

ON

What is the last step you should do to solve this equation?

• Add 6 to both sides

• Divide both sides by -6

• Divide both sides by 36

• Multiply both sides by -6

Mathematical Equivalence

ON

Solve the formula for x.  What is the 2nd step? 

• Multiply each side by A. 

• Subtract A from each side. 

• Divide each side by A. 

• Divide by x on both sides. 

The goal of solving a one, two, or multi-step equations is to:

• Find the constant

• Find the coefficient

• Find the value of the variable

• Guess and check

What is the first step to solve this equation?
3n - 4 = -2 + 2n 

• Add 2n to both sides of the equation

• Add 3n to both sides of the equation

• Subtract 2n from both sides of the equation

• Subtract 4 from both sides of the equation