Answer:
b = 1/2, -12.5
Explanation:
13 = |2b+12|
Case 1:
13 = 2b + 12
1 = 2b
b = 1/2
Case 2:
13 = - (2b + 12)
13 = -2b - 12
25 = -2b
b = -12.5
So, the answer is b = 1/2 & -12.5
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