x+7-2x-4+4x-12=18

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Solution for x+7-2x-4+4x-12=18 equation:


Simplifying
x + 7 + -2x + -4 + 4x + -12 = 18

Reorder the terms:
7 + -4 + -12 + x + -2x + 4x = 18

Combine like terms: 7 + -4 = 3
3 + -12 + x + -2x + 4x = 18

Combine like terms: 3 + -12 = -9
-9 + x + -2x + 4x = 18

Combine like terms: x + -2x = -1x
-9 + -1x + 4x = 18

Combine like terms: -1x + 4x = 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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