-13=2-7b-8

Solution for -13=2-7b-8 equation:

Simplifying
-13 = 2 + -7b + -8

Reorder the terms:
-13 = 2 + -8 + -7b

Combine like terms: 2 + -8 = -6
-13 = -6 + -7b

Solving
-13 = -6 + -7b

Solving for variable 'b'.

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

Add '7b' to each side of the equation.
-13 + 7b = -6 + -7b + 7b

Combine like terms: -7b + 7b = 0
-13 + 7b = -6 + 0
-13 + 7b = -6

Add '13' to each side of the equation.
-13 + 13 + 7b = -6 + 13

Combine like terms: -13 + 13 = 0
0 + 7b = -6 + 13
7b = -6 + 13

Combine like terms: -6 + 13 = 7
7b = 7

Divide each side by '7'.
b = 1

Simplifying
b = 1