anninya711 anninya711

10-07-2018
Mathematics

contestada

What is the answer for |x|-7=8
A) x=1
B) x= 15
C)x= -1 or 1
D) x= -15 or 15

Respuesta :

st4rgrl st4rgrl

10-07-2018

The answer is D. "x=-15 or 15."

You can solve this by adding seven on both sides.
|x|-7=8
+7 +7
------------
|x|=15

Therefore, x is either equal to 15 or -15.

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