261-x=90

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Solution for 261-x=90 equation:


Simplifying
261 + -1x = 90

Solving
261 + -1x = 90

Solving for variable 'x'.

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

Add '-261' to each side of the equation.
261 + -261 + -1x = 90 + -261

Combine like terms: 261 + -261 = 0
0 + -1x = 90 + -261
-1x = 90 + -261

Combine like terms: 90 + -261 = -171
-1x = -171

Divide each side by '-1'.
x = 171

Simplifying
x = 171

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