5b+8(b-6)=-139

Solution for 5b+8(b-6)=-139 equation:

Simplifying
5b + 8(b + -6) = -139

Reorder the terms:
5b + 8(-6 + b) = -139
5b + (-6 * 8 + b * 8) = -139
5b + (-48 + 8b) = -139

Reorder the terms:
-48 + 5b + 8b = -139

Combine like terms: 5b + 8b = 13b
-48 + 13b = -139

Solving
-48 + 13b = -139

Solving for variable 'b'.

Move all terms containing b to the left, all other terms to the right.

Add '48' to each side of the equation.
-48 + 48 + 13b = -139 + 48

Combine like terms: -48 + 48 = 0
0 + 13b = -139 + 48
13b = -139 + 48

Combine like terms: -139 + 48 = -91
13b = -91

Divide each side by '13'.
b = -7

Simplifying
b = -7