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17-08-2017
Mathematics

contestada

Absolute value equation.

8|x + 7| - 3= 5

Please show show how to do the problem.

Respuesta :

kphung76127 kphung76127

17-08-2017

8|x+7|-3=5

Add 3 to both sides
8|x+7|=8

Divide both sides by 8
|x+7|=1

Rewrite absolute value equation as follows:
x+7=1
x+7=-1

Solve for both
x+7=1
x=-6

x+7=-1
x=-8

Final answer: x=-8, x=-6

Answer Link

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