Geometry: Common Core (15th Edition)

Published by Prentice Hall
ISBN 10: 0133281159
ISBN 13: 978-0-13328-115-6

Chapter 1 - Tools of Geometry - Get Ready!: 14

Answer

$x=6$

Work Step by Step

To solve an equation, isolate the variable on one side of the equation. $5x-12=2x+6$ Using the addition property of equality subtract 2x from each side. $5x-12-2x=2x+6-2x$ Simplify by combining like terms. $3x-12=6$ Using the addition property of equality add 12 to each side. $3x-12+12=6+12$ Simplify by combining like terms. $3x=18$ Using the multiplication property of equality, divide both sides by 3. $3x\div3=18\div3$ Divide. $x=6$
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