18=3x-8x

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Solution for 18=3x-8x equation:


Simplifying
18 = 3x + -8x

Combine like terms: 3x + -8x = -5x
18 = -5x

Solving
18 = -5x

Solving for variable 'x'.

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

Add '5x' to each side of the equation.
18 + 5x = -5x + 5x

Combine like terms: -5x + 5x = 0
18 + 5x = 0

Add '-18' to each side of the equation.
18 + -18 + 5x = 0 + -18

Combine like terms: 18 + -18 = 0
0 + 5x = 0 + -18
5x = 0 + -18

Combine like terms: 0 + -18 = -18
5x = -18

Divide each side by '5'.
x = -3.6

Simplifying
x = -3.6

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