9-4X+X=-18

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Solution for 9-4X+X=-18 equation: 


Simplifying
9 + -4X + X = -18

Combine like terms: -4X + X = -3X
9 + -3X = -18

Solving
9 + -3X = -18

Solving for variable 'X'.

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

Add '-9' to each side of the equation.
9 + -9 + -3X = -18 + -9

Combine like terms: 9 + -9 = 0
0 + -3X = -18 + -9
-3X = -18 + -9

Combine like terms: -18 + -9 = -27
-3X = -27

Divide each side by '-3'.
X = 9

Simplifying
X = 9

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