9x-78=3x

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Solution for 9x-78=3x equation:


Simplifying
9x + -78 = 3x

Reorder the terms:
-78 + 9x = 3x

Solving
-78 + 9x = 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.
-78 + 9x + -3x = 3x + -3x

Combine like terms: 9x + -3x = 6x
-78 + 6x = 3x + -3x

Combine like terms: 3x + -3x = 0
-78 + 6x = 0

Add '78' to each side of the equation.
-78 + 78 + 6x = 0 + 78

Combine like terms: -78 + 78 = 0
0 + 6x = 0 + 78
6x = 0 + 78

Combine like terms: 0 + 78 = 78
6x = 78

Divide each side by '6'.
x = 13

Simplifying
x = 13

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