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

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


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

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

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

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

Solving
-4x = 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.
-4x + (x) = 9 + (-1x) + (x)
-4x + x = 9 + (-1x) + (x)

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

Combine like terms: (-1x) + x = 0
-3x = 9 + 0
-3x = 9

Divide each side by '-3'.
x = -3

Simplifying
x = -3

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