3x+9=x+9

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Solution for 3x+9=x+9 equation:


Simplifying
3x + 9 = x + 9

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

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

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

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

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

Solving
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.
3x + -1x = x + -1x

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

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

Divide each side by '2'.
x = 0

Simplifying
x = 0

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