Seudónimo Seudónimo

17-03-2017
Mathematics

contestada

Solve for x: |4x + 12| = 16

Respuesta :

apologiabiology apologiabiology

17-03-2017

to solve
if you have |a|=b, solve a=b and a=-b

|4x+12|=16
solve
4x+12=16 and 4x+12=-16
minus 12 both sides
4x=4 and 4x=-28
divide both sides by 4
x=1 and x=-7

Answer Link

helplz9 helplz9

17-03-2017

x= 1, -7

find all the solutions for x by breaking down the absolute value into negative and positive pieces or components.

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