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Use a property of equality to solve each equation. Then check the result. See Example $2 .$$$a-5=66$$
$$71$$
Precalculus
Algebra
Chapter 2
Equations, Inequalities, and Problem Solving
Section 1
Solving Equations Using Properties of Equality
Algebra Topics That are Reviewed at the Start of the Semester
Equations and Inequalities
University of Michigan - Ann Arbor
Idaho State University
Lectures
01:32
In mathematics, the absolu…
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01:53
Use a property of equality…
01:04
01:29
00:44
00:36
01:05
01:37
Solve each equation using …
00:32
Solve each equation. Check…
self the equation and then check your solution. A minus five equals 66 and five to both sides to isolate the variable. Hey, equal 71. To check the solution, substitute 71 into the original equation for a and see if it's a true statement is 71 minus five equal to 66. 66 equals 66. That is a true statement. A is equal to 71.
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