18=x+x-6

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Solution for 18=x+x-6 equation:


Simplifying
18 = x + x + -6

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

Combine like terms: x + x = 2x
18 = -6 + 2x

Solving
18 = -6 + 2x

Solving for variable 'x'.

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

Add '-2x' to each side of the equation.
18 + -2x = -6 + 2x + -2x

Combine like terms: 2x + -2x = 0
18 + -2x = -6 + 0
18 + -2x = -6

Add '-18' to each side of the equation.
18 + -18 + -2x = -6 + -18

Combine like terms: 18 + -18 = 0
0 + -2x = -6 + -18
-2x = -6 + -18

Combine like terms: -6 + -18 = -24
-2x = -24

Divide each side by '-2'.
x = 12

Simplifying
x = 12

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