7b+5-(-7b)-2=-8

Solution for 7b+5-(-7b)-2=-8 equation:

Simplifying
7b + 5 + -1(-7b) + -2 = -8

Remove parenthesis around (-7b)
7b + 5 + -1 * -7b + -2 = -8

Multiply -1 * -7
7b + 5 + 7b + -2 = -8

Reorder the terms:
5 + -2 + 7b + 7b = -8

Combine like terms: 5 + -2 = 3
3 + 7b + 7b = -8

Combine like terms: 7b + 7b = 14b
3 + 14b = -8

Solving
3 + 14b = -8

Solving for variable 'b'.

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

Add '-3' to each side of the equation.
3 + -3 + 14b = -8 + -3

Combine like terms: 3 + -3 = 0
0 + 14b = -8 + -3
14b = -8 + -3

Combine like terms: -8 + -3 = -11
14b = -11

Divide each side by '14'.
b = -0.7857142857

Simplifying
b = -0.7857142857