-7(b+6)=-91

Solution for -7(b+6)=-91 equation:

Simplifying
-7(b + 6) = -91

Reorder the terms:
-7(6 + b) = -91
(6 * -7 + b * -7) = -91
(-42 + -7b) = -91

Solving
-42 + -7b = -91

Solving for variable 'b'.

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

Add '42' to each side of the equation.
-42 + 42 + -7b = -91 + 42

Combine like terms: -42 + 42 = 0
0 + -7b = -91 + 42
-7b = -91 + 42

Combine like terms: -91 + 42 = -49
-7b = -49

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

Simplifying
b = 7