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OpenStudy (anonymous):
Solve for x: |2x + 6| − 4 = 20
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OpenStudy (anonymous):
solve algebraically...
OpenStudy (anonymous):
|2x + 6|=20+4=24 2x+6=24 2x=24-6=18 x=18/2=9 x=9
OpenStudy (anonymous):
check for the value of x... particularly the absolute value of 2x+6...
OpenStudy (anonymous):
|2(9)+6|=|18+6|=|24|=24... therefore x=9 is correct, actually the absolute of any number is always the positive number...
OpenStudy (anonymous):
hope you understand it...
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