42-w=212

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Solution for 42-w=212 equation:


Simplifying
42 + -1w = 212

Solving
42 + -1w = 212

Solving for variable 'w'.

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

Add '-42' to each side of the equation.
42 + -42 + -1w = 212 + -42

Combine like terms: 42 + -42 = 0
0 + -1w = 212 + -42
-1w = 212 + -42

Combine like terms: 212 + -42 = 170
-1w = 170

Divide each side by '-1'.
w = -170

Simplifying
w = -170

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