We have b - 12 = 15 or b - 12 = - 15;
Then b = 12 + 15 or b = 12 - 15;
Finally, b = 27 or b = -3;
The solutions are 27; -3.
Absolute value has a positive and neg. Answer
B-12=15
B= 15+12
B= 27
Now the negative
B-12=-15
B=-15+12
B= -3
Answer is
B= 27,-3
