X+7=7-x

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Solution for X+7=7-x equation: 


Simplifying
X + 7 = 7 + -1x

Reorder the terms:
7 + X = 7 + -1x

Add '-7' to each side of the equation.
7 + -7 + X = 7 + -7 + -1x

Combine like terms: 7 + -7 = 0
0 + X = 7 + -7 + -1x
X = 7 + -7 + -1x

Combine like terms: 7 + -7 = 0
X = 0 + -1x
X = -1x

Solving
X = -1x

Solving for variable 'X'.

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

Simplifying
X = -1x

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