Algebra: A Combined Approach (4th Edition)

Published by Pearson
ISBN 10: 0321726391
ISBN 13: 978-0-32172-639-1

Appendix B - Exercise Set: 7



Work Step by Step

$5y+12=2y-3$ Step 1: is not needed since there are no fractions. Step 2: is not needed since there are no parentheses. Step 3: is not needed. Step 4: the equation is linear. Step 5: $5y+12-12=2y-3-12$ (Add -12 to both sides) $5y-2y=2y-15-2y$ (Add -2y to both sides) $3y=-15$ Step 6: $\frac{3x}{3}=\frac{-15}{3}$ Divide both sides by 3. $y=-5$ Final Step: check: $5\times-5+12=2\times-5-3=-13$
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