4-7b=-8b

Solution for 4-7b=-8b equation:

Simplifying
4 + -7b = -8b

Solving
4 + -7b = -8b

Solving for variable 'b'.

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

Add '8b' to each side of the equation.
4 + -7b + 8b = -8b + 8b

Combine like terms: -7b + 8b = 1b
4 + 1b = -8b + 8b

Combine like terms: -8b + 8b = 0
4 + 1b = 0

Add '-4' to each side of the equation.
4 + -4 + 1b = 0 + -4

Combine like terms: 4 + -4 = 0
0 + 1b = 0 + -4
1b = 0 + -4

Combine like terms: 0 + -4 = -4
1b = -4

Divide each side by '1'.
b = -4

Simplifying
b = -4