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asked 9 months ago
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If x>0, |x| becomes x.
if x<0, |x| becomes -x.
Therefore we have to think two possible cases for this equation:
if 2a+1<0,
-5(-2a -1) - 1 = -51.
10a + 5 - 1 = -51
10a = -55
a = -5.5
if 2a+1>0,
-5(2a+1) - 1 = -51.
-10a - 5 - 1 = -51
-10a = -45
a = -4.5
if x<0, |x| becomes -x.
Therefore we have to think two possible cases for this equation:
if 2a+1<0,
-5(-2a -1) - 1 = -51.
10a + 5 - 1 = -51
10a = -55
a = -5.5
if 2a+1>0,
-5(2a+1) - 1 = -51.
-10a - 5 - 1 = -51
-10a = -45
a = -4.5
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