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OpenStudy (anonymous):
|2a +7|=a-4 absoulute value equations
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OpenStudy (shamil98):
2a + 7 = -(a-4) 2a + 7 = a- 4 Solve for a.
OpenStudy (anonymous):
so do 7+4
OpenStudy (shamil98):
2a + 7 = a - 4 -7 -7 2a = a - 11 -a -a a = -11
OpenStudy (shamil98):
2a + 7 = -1(a-4) 2a + 7 = -a +4 solve for a from there, try doing the problem.
OpenStudy (anonymous):
okay
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OpenStudy (anonymous):
a=-11 a=-3
OpenStudy (shamil98):
2a + 7 = -a +4 3a = -3 a = -1.
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