4b-39=7b

Solution for 4b-39=7b equation:

Simplifying
4b + -39 = 7b

Reorder the terms:
-39 + 4b = 7b

Solving
-39 + 4b = 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.
-39 + 4b + -7b = 7b + -7b

Combine like terms: 4b + -7b = -3b
-39 + -3b = 7b + -7b

Combine like terms: 7b + -7b = 0
-39 + -3b = 0

Add '39' to each side of the equation.
-39 + 39 + -3b = 0 + 39

Combine like terms: -39 + 39 = 0
0 + -3b = 0 + 39
-3b = 0 + 39

Combine like terms: 0 + 39 = 39
-3b = 39

Divide each side by '-3'.
b = -13

Simplifying
b = -13