207=121-x

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Solution for 207=121-x equation:


Simplifying
207 = 121 + -1x

Solving
207 = 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.
207 + x = 121 + -1x + x

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

Add '-207' to each side of the equation.
207 + -207 + x = 121 + -207

Combine like terms: 207 + -207 = 0
0 + x = 121 + -207
x = 121 + -207

Combine like terms: 121 + -207 = -86
x = -86

Simplifying
x = -86

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