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OpenStudy (anonymous):
3|2a + 7| =3a + 12
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OpenStudy (anonymous):
\[\Large 3|2a + 7| =3a + 12\] \[\Large |2a + 7| =a + 4 ~~~~~~~~~~divide~both~sides~by~3 \] Since |x| is a measure of distance, both + and - have to be considered \[\Huge 2a+7=(a+4)\] & \[\Huge 2a+7=-(a+4)\]
OpenStudy (anonymous):
Can you solve for "a" for me now?
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