x+18=10x-9

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Solution for x+18=10x-9 equation:


Simplifying
x + 18 = 10x + -9

Reorder the terms:
18 + x = 10x + -9

Reorder the terms:
18 + x = -9 + 10x

Solving
18 + x = -9 + 10x

Solving for variable 'x'.

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

Add '-10x' to each side of the equation.
18 + x + -10x = -9 + 10x + -10x

Combine like terms: x + -10x = -9x
18 + -9x = -9 + 10x + -10x

Combine like terms: 10x + -10x = 0
18 + -9x = -9 + 0
18 + -9x = -9

Add '-18' to each side of the equation.
18 + -18 + -9x = -9 + -18

Combine like terms: 18 + -18 = 0
0 + -9x = -9 + -18
-9x = -9 + -18

Combine like terms: -9 + -18 = -27
-9x = -27

Divide each side by '-9'.
x = 3

Simplifying
x = 3

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