The value of b for both expression is 0
Modulus of a function
A modulus function is a function which gives the absolute value of a number or variable.
Given the following expression as shown;
-|b+6| = |3b-2|
For the positive value
-(b+6) = 3b - 2
-b-6 = 3b -6
2b = 0
b = 0
For the negative part
-(-b-6) = -(3b-2)
b + 6 = -3b + 6
4b = 0
b = 0
Hence the value of b for both expression is 0
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