How do you solve $|-7x + 7| + 7 = 49$ ?

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Answer 1 · 2016-06-05T11:08:17

$x=-5 or x=7$

$|-7x+7|=49-7$
$|-7x+7|=42$
$-7x+7=+-42$

1) $-7x=42-7$
$-7x=35$
$x=-5$

2) $-7x=-42-7$
$-7x=-49$
$x=7$

How do you solve |-7x + 7| + 7 = 49|-7x + 7| + 7 = 49?