7-42=w

Solution for 7-42=w equation:

Simplifying
7 + -42 = w

Combine like terms: 7 + -42 = -35
-35 = w

Solving
-35 = w

Solving for variable 'w'.

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

Add '-1w' to each side of the equation.
-35 + -1w = w + -1w

Combine like terms: w + -1w = 0
-35 + -1w = 0

Add '35' to each side of the equation.
-35 + 35 + -1w = 0 + 35

Combine like terms: -35 + 35 = 0
0 + -1w = 0 + 35
-1w = 0 + 35

Combine like terms: 0 + 35 = 35
-1w = 35

Divide each side by '-1'.
w = -35

Simplifying
w = -35