How do you solve $| 7x + 2 | = 10$ ?

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Answer 1 · 2016-01-14T21:24:13

$x=8/7 or x=-12/7$

from definition of the absolute value function, we get

$7x+2=10 or 7x+2=-10$

$therefore x=8/7 or x=-12/7$

How do you solve | 7x + 2 | = 10 | 7x + 2 | = 10?