12.5=1-X

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Solution for 12.5=1-X equation:


Simplifying
12.5 = 1 + -1X

Solving
12.5 = 1 + -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.
12.5 + X = 1 + -1X + X

Combine like terms: -1X + X = 0
12.5 + X = 1 + 0
12.5 + X = 1

Add '-12.5' to each side of the equation.
12.5 + -12.5 + X = 1 + -12.5

Combine like terms: 12.5 + -12.5 = 0.0
0.0 + X = 1 + -12.5
X = 1 + -12.5

Combine like terms: 1 + -12.5 = -11.5
X = -11.5

Simplifying
X = -11.5

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