4x-18=x+9

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Solution for 4x-18=x+9 equation:


Simplifying
4x + -18 = x + 9

Reorder the terms:
-18 + 4x = x + 9

Reorder the terms:
-18 + 4x = 9 + x

Solving
-18 + 4x = 9 + 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.
-18 + 4x + -1x = 9 + x + -1x

Combine like terms: 4x + -1x = 3x
-18 + 3x = 9 + x + -1x

Combine like terms: x + -1x = 0
-18 + 3x = 9 + 0
-18 + 3x = 9

Add '18' to each side of the equation.
-18 + 18 + 3x = 9 + 18

Combine like terms: -18 + 18 = 0
0 + 3x = 9 + 18
3x = 9 + 18

Combine like terms: 9 + 18 = 27
3x = 27

Divide each side by '3'.
x = 9

Simplifying
x = 9

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