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Solving Two - Step Equations

Solving Two - Step Equations

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Author: Warrick Wilson
Description:

To solve two - step equations.

To use two - step equations to solve problems.

How do you solve a two - step equation?

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Tutorial

The equation -3y + 5 = 26 involves two steps. The variable is multiplied by - 3. Then 5 is added. To solve the equation, work backward. First undo the addition by subtracting 5 from each side. Then undo the multiplication by dividing each side by - 3.

- 3y +5 = 26

-3y + 5 - 5 = 26 - 5

-3y/-3 = 21/3

y = -7

Source: Prentice Hall Course 3.