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Berkeley City College

Pre-Algebra: Lesson 078

One-Step Equations
Introduction to Equations

Lesson Description

Students learn to write mathematical questions as equations. For example, "What number can you add to 25 to get 30?" can be written as the equation 25 + n = 30. Students are also asked to determine whether a given value, such as 3, is a solution to a given equation, such as x - 2 = 1. Substituting a 3 in for x, since (3) - 2 = 1 is a true statement, then 3 is a solution to x - 2 = 1.

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