18=x-7x

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Solution for 18=x-7x equation:


Simplifying
18 = x + -7x

Combine like terms: x + -7x = -6x
18 = -6x

Solving
18 = -6x

Solving for variable 'x'.

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

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

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

Add '-18' to each side of the equation.
18 + -18 + 6x = 0 + -18

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

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

Divide each side by '6'.
x = -3

Simplifying
x = -3

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