9-x=3x-39

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Solution for 9-x=3x-39 equation:


Simplifying
9 + -1x = 3x + -39

Reorder the terms:
9 + -1x = -39 + 3x

Solving
9 + -1x = -39 + 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 + -1x + -3x = -39 + 3x + -3x

Combine like terms: -1x + -3x = -4x
9 + -4x = -39 + 3x + -3x

Combine like terms: 3x + -3x = 0
9 + -4x = -39 + 0
9 + -4x = -39

Add '-9' to each side of the equation.
9 + -9 + -4x = -39 + -9

Combine like terms: 9 + -9 = 0
0 + -4x = -39 + -9
-4x = -39 + -9

Combine like terms: -39 + -9 = -48
-4x = -48

Divide each side by '-4'.
x = 12

Simplifying
x = 12

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