Elementary Technical Mathematics

Published by Brooks Cole
ISBN 10: 1285199197
ISBN 13: 978-1-28519-919-1

Chapter 6 - Review: 13

Answer

y=4

Work Step by Step

Simplifying 3y + -5(2 + -1y) = 22 3y + (2 * -5 + -1y * -5) = 22 3y + (-10 + 5y) = 22 Reorder the terms: -10 + 3y + 5y = 22 Combine like terms: 3y + 5y = 8y -10 + 8y = 22 Solving -10 + 8y = 22 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Add '10' to each side of the equation. -10 + 10 + 8y = 22 + 10 Combine like terms: -10 + 10 = 0 0 + 8y = 22 + 10 8y = 22 + 10 Combine like terms: 22 + 10 = 32 8y = 32 Divide each side by '8'. y = 4 Simplifying y = 4
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