3x-72=99-6x

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Solution for 3x-72=99-6x equation:


Simplifying
3x + -72 = 99 + -6x

Reorder the terms:
-72 + 3x = 99 + -6x

Solving
-72 + 3x = 99 + -6x

Solving for variable 'x'.

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

Add '6x' to each side of the equation.
-72 + 3x + 6x = 99 + -6x + 6x

Combine like terms: 3x + 6x = 9x
-72 + 9x = 99 + -6x + 6x

Combine like terms: -6x + 6x = 0
-72 + 9x = 99 + 0
-72 + 9x = 99

Add '72' to each side of the equation.
-72 + 72 + 9x = 99 + 72

Combine like terms: -72 + 72 = 0
0 + 9x = 99 + 72
9x = 99 + 72

Combine like terms: 99 + 72 = 171
9x = 171

Divide each side by '9'.
x = 19

Simplifying
x = 19

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