3x-6+x=18

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Solution for 3x-6+x=18 equation: 


Simplifying
3x + -6 + x = 18

Reorder the terms:
-6 + 3x + x = 18

Combine like terms: 3x + x = 4x
-6 + 4x = 18

Solving
-6 + 4x = 18

Solving for variable 'x'.

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

Add '6' to each side of the equation.
-6 + 6 + 4x = 18 + 6

Combine like terms: -6 + 6 = 0
0 + 4x = 18 + 6
4x = 18 + 6

Combine like terms: 18 + 6 = 24
4x = 24

Divide each side by '4'.
x = 6

Simplifying
x = 6

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