6x+9=9x+18

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Solution for 6x+9=9x+18 equation:


Simplifying
6x + 9 = 9x + 18

Reorder the terms:
9 + 6x = 9x + 18

Reorder the terms:
9 + 6x = 18 + 9x

Solving
9 + 6x = 18 + 9x

Solving for variable 'x'.

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

Add '-9x' to each side of the equation.
9 + 6x + -9x = 18 + 9x + -9x

Combine like terms: 6x + -9x = -3x
9 + -3x = 18 + 9x + -9x

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

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

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

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

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

Simplifying
x = -3

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