X-2X=12-18

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Solution for X-2X=12-18 equation: 


Simplifying
X + -2X = 12 + -18

Combine like terms: X + -2X = -1X
-1X = 12 + -18

Combine like terms: 12 + -18 = -6
-1X = -6

Solving
-1X = -6

Solving for variable 'X'.

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

Divide each side by '-1'.
X = 6

Simplifying
X = 6

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