57=12-x

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Solution for 57=12-x equation:


Simplifying
57 = 12 + -1x

Solving
57 = 12 + -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.
57 + x = 12 + -1x + x

Combine like terms: -1x + x = 0
57 + x = 12 + 0
57 + x = 12

Add '-57' to each side of the equation.
57 + -57 + x = 12 + -57

Combine like terms: 57 + -57 = 0
0 + x = 12 + -57
x = 12 + -57

Combine like terms: 12 + -57 = -45
x = -45

Simplifying
x = -45

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