225=121-x

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Solution for 225=121-x equation:


Simplifying
225 = 121 + -1x

Solving
225 = 121 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
225 + x = 121 + -1x + x

Combine like terms: -1x + x = 0
225 + x = 121 + 0
225 + x = 121

Add '-225' to each side of the equation.
225 + -225 + x = 121 + -225

Combine like terms: 225 + -225 = 0
0 + x = 121 + -225
x = 121 + -225

Combine like terms: 121 + -225 = -104
x = -104

Simplifying
x = -104

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