10x-9=x+18

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


Simplifying
10x + -9 = x + 18

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

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

Solving
-9 + 10x = 18 + x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-9 + 10x + -1x = 18 + x + -1x

Combine like terms: 10x + -1x = 9x
-9 + 9x = 18 + x + -1x

Combine like terms: x + -1x = 0
-9 + 9x = 18 + 0
-9 + 9x = 18

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

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

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

Divide each side by '9'.
x = 3

Simplifying
x = 3

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