-b-6b=-(-7b-2)-2(1-7b)

Solution for -b-6b=-(-7b-2)-2(1-7b) equation:

Simplifying
-1b + -6b = -1(-7b + -2) + -2(1 + -7b)

Combine like terms: -1b + -6b = -7b
-7b = -1(-7b + -2) + -2(1 + -7b)

Reorder the terms:
-7b = -1(-2 + -7b) + -2(1 + -7b)
-7b = (-2 * -1 + -7b * -1) + -2(1 + -7b)
-7b = (2 + 7b) + -2(1 + -7b)
-7b = 2 + 7b + (1 * -2 + -7b * -2)
-7b = 2 + 7b + (-2 + 14b)

Reorder the terms:
-7b = 2 + -2 + 7b + 14b

Combine like terms: 2 + -2 = 0
-7b = 0 + 7b + 14b
-7b = 7b + 14b

Combine like terms: 7b + 14b = 21b
-7b = 21b

Solving
-7b = 21b

Solving for variable 'b'.

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

Add '-21b' to each side of the equation.
-7b + -21b = 21b + -21b

Combine like terms: -7b + -21b = -28b
-28b = 21b + -21b

Combine like terms: 21b + -21b = 0
-28b = 0

Divide each side by '-28'.
b = 0

Simplifying
b = 0