#### Answer

$3x - 7y = 21$
$y = \frac{3}{7}x - 3$

#### Work Step by Step

$15x - 35y = 105$
15, 35 and 105 are multiples of 5, and therefore can divide the whole equation by 5.
$3x - 7y = 21$
$-7y = -3x + 21$
$y = \frac{3}{7}x - 3$

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Published by
Brooks Cole

ISBN 10:
9781285195698

ISBN 13:
978-1-28519-569-8

$3x - 7y = 21$
$y = \frac{3}{7}x - 3$

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