#### Answer

-20a + 28b = 16

#### Work Step by Step

5a - 7b = -4 multiply to both sides by -4
-4(5a - 7b ) = -4 ( -4 ) use the distributive property
- 20a + 28b = 16

Published by
Pearson

ISBN 10:
0321726391

ISBN 13:
978-0-32172-639-1

-20a + 28b = 16

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