x-(-2x)=x+9

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Solution for x-(-2x)=x+9 equation:


Simplifying
x + -1(-2x) = x + 9

Remove parenthesis around (-2x)
x + -1 * -2x = x + 9

Multiply -1 * -2
x + 2x = x + 9

Combine like terms: x + 2x = 3x
3x = x + 9

Reorder the terms:
3x = 9 + x

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

Combine like terms: 3x + -1x = 2x
2x = 9 + x + -1x

Combine like terms: x + -1x = 0
2x = 9 + 0
2x = 9

Divide each side by '2'.
x = 4.5

Simplifying
x = 4.5

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