Respuesta :

The answer is B. x=-7

Explanation:

I just substituted x for all of the answer choices until I found the right one.

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so first you have to subtract 12 from both sides
this will give you
:square root(1-5x)=6
then we must square both sides to get
: 1-5x=36
we then subtract 1
:-5x=35
and divide by -5 to get a final answer of

:x=-7