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

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


Simplifying
3(-1x) + -1(-1x) = -1x + 9

Remove parenthesis around (-1x)
3 * -1x + -1(-1x) = -1x + 9

Multiply 3 * -1
-3x + -1(-1x) = -1x + 9

Remove parenthesis around (-1x)
-3x + -1 * -1x = -1x + 9

Multiply -1 * -1
-3x + 1x = -1x + 9

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

Reorder the terms:
-2x = 9 + -1x

Solving
-2x = 9 + -1x

Solving for variable 'x'.

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

Add 'x' to each side of the equation.
-2x + x = 9 + -1x + x

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

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

Divide each side by '-1'.
x = -9

Simplifying
x = -9

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