X-12=3(90-x)

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Solution for X-12=3(90-x) equation:


Simplifying
X + -12 = 3(90 + -1x)

Reorder the terms:
-12 + X = 3(90 + -1x)
-12 + X = (90 * 3 + -1x * 3)
-12 + X = (270 + -3x)

Solving
-12 + X = 270 + -3x

Solving for variable 'X'.

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

Add '12' to each side of the equation.
-12 + 12 + X = 270 + 12 + -3x

Combine like terms: -12 + 12 = 0
0 + X = 270 + 12 + -3x
X = 270 + 12 + -3x

Combine like terms: 270 + 12 = 282
X = 282 + -3x

Simplifying
X = 282 + -3x

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