(3x-9)+4=x

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Solution for (3x-9)+4=x equation:


Simplifying
(3x + -9) + 4 = x

Reorder the terms:
(-9 + 3x) + 4 = x

Remove parenthesis around (-9 + 3x)
-9 + 3x + 4 = x

Reorder the terms:
-9 + 4 + 3x = x

Combine like terms: -9 + 4 = -5
-5 + 3x = x

Solving
-5 + 3x = x

Solving for variable 'x'.

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

Add '-1x' to each side of the equation.
-5 + 3x + -1x = x + -1x

Combine like terms: 3x + -1x = 2x
-5 + 2x = x + -1x

Combine like terms: x + -1x = 0
-5 + 2x = 0

Add '5' to each side of the equation.
-5 + 5 + 2x = 0 + 5

Combine like terms: -5 + 5 = 0
0 + 2x = 0 + 5
2x = 0 + 5

Combine like terms: 0 + 5 = 5
2x = 5

Divide each side by '2'.
x = 2.5

Simplifying
x = 2.5

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