7b+12-4b=

Solution for 7b+12-4b= equation:

Simplifying
7b + 12 + -4b = 0

Reorder the terms:
12 + 7b + -4b = 0

Combine like terms: 7b + -4b = 3b
12 + 3b = 0

Solving
12 + 3b = 0

Solving for variable 'b'.

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

Add '-12' to each side of the equation.
12 + -12 + 3b = 0 + -12

Combine like terms: 12 + -12 = 0
0 + 3b = 0 + -12
3b = 0 + -12

Combine like terms: 0 + -12 = -12
3b = -12

Divide each side by '3'.
b = -4

Simplifying
b = -4