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Berkeley City College

Pre-Algebra: Lesson 080

One-Step Equations
Subtraction Equations

Lesson Description

Students learn to solve one-step subtraction equations. For example, to solve z - 3 = 16, add 3 to both sides of the equation, to get z = 19. Next, check the solution by substituting a 19 back into the original equation, to get (19) - 3 = 16, which is a true statement, so the solution checks.

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