42-y=280

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Solution for 42-y=280 equation: 


Simplifying
42 + -1y = 280

Solving
42 + -1y = 280

Solving for variable 'y'.

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

Add '-42' to each side of the equation.
42 + -42 + -1y = 280 + -42

Combine like terms: 42 + -42 = 0
0 + -1y = 280 + -42
-1y = 280 + -42

Combine like terms: 280 + -42 = 238
-1y = 238

Divide each side by '-1'.
y = -238

Simplifying
y = -238

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