42-27=w

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Solution for 42-27=w equation:


Simplifying
42 + -27 = w

Combine like terms: 42 + -27 = 15
15 = w

Solving
15 = 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.
15 + -1w = w + -1w

Combine like terms: w + -1w = 0
15 + -1w = 0

Add '-15' to each side of the equation.
15 + -15 + -1w = 0 + -15

Combine like terms: 15 + -15 = 0
0 + -1w = 0 + -15
-1w = 0 + -15

Combine like terms: 0 + -15 = -15
-1w = -15

Divide each side by '-1'.
w = 15

Simplifying
w = 15

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