42+3b=4b

Solution for 42+3b=4b equation:

Simplifying
42 + 3b = 4b

Solving
42 + 3b = 4b

Solving for variable 'b'.

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

Add '-4b' to each side of the equation.
42 + 3b + -4b = 4b + -4b

Combine like terms: 3b + -4b = -1b
42 + -1b = 4b + -4b

Combine like terms: 4b + -4b = 0
42 + -1b = 0

Add '-42' to each side of the equation.
42 + -42 + -1b = 0 + -42

Combine like terms: 42 + -42 = 0
0 + -1b = 0 + -42
-1b = 0 + -42

Combine like terms: 0 + -42 = -42
-1b = -42

Divide each side by '-1'.
b = 42

Simplifying
b = 42