42=3w+4w

Solution for 42=3w+4w equation:

Simplifying
42 = 3w + 4w

Combine like terms: 3w + 4w = 7w
42 = 7w

Solving
42 = 7w

Solving for variable 'w'.

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

Add '-7w' to each side of the equation.
42 + -7w = 7w + -7w

Combine like terms: 7w + -7w = 0
42 + -7w = 0

Add '-42' to each side of the equation.
42 + -42 + -7w = 0 + -42

Combine like terms: 42 + -42 = 0
0 + -7w = 0 + -42
-7w = 0 + -42

Combine like terms: 0 + -42 = -42
-7w = -42

Divide each side by '-7'.
w = 6

Simplifying
w = 6