215=-x+123

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Solution for 215=-x+123 equation:


Simplifying
215 = -1x + 123

Reorder the terms:
215 = 123 + -1x

Solving
215 = 123 + -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.
215 + x = 123 + -1x + x

Combine like terms: -1x + x = 0
215 + x = 123 + 0
215 + x = 123

Add '-215' to each side of the equation.
215 + -215 + x = 123 + -215

Combine like terms: 215 + -215 = 0
0 + x = 123 + -215
x = 123 + -215

Combine like terms: 123 + -215 = -92
x = -92

Simplifying
x = -92

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