6x-9=99-3x

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Solution for 6x-9=99-3x equation:


Simplifying
6x + -9 = 99 + -3x

Reorder the terms:
-9 + 6x = 99 + -3x

Solving
-9 + 6x = 99 + -3x

Solving for variable 'x'.

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

Add '3x' to each side of the equation.
-9 + 6x + 3x = 99 + -3x + 3x

Combine like terms: 6x + 3x = 9x
-9 + 9x = 99 + -3x + 3x

Combine like terms: -3x + 3x = 0
-9 + 9x = 99 + 0
-9 + 9x = 99

Add '9' to each side of the equation.
-9 + 9 + 9x = 99 + 9

Combine like terms: -9 + 9 = 0
0 + 9x = 99 + 9
9x = 99 + 9

Combine like terms: 99 + 9 = 108
9x = 108

Divide each side by '9'.
x = 12

Simplifying
x = 12

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