3(x-1)-x=-9

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Solution for 3(x-1)-x=-9 equation:


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

Reorder the terms:
3(-1 + x) + -1x = -9
(-1 * 3 + x * 3) + -1x = -9
(-3 + 3x) + -1x = -9

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

Solving
-3 + 2x = -9

Solving for variable 'x'.

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

Add '3' to each side of the equation.
-3 + 3 + 2x = -9 + 3

Combine like terms: -3 + 3 = 0
0 + 2x = -9 + 3
2x = -9 + 3

Combine like terms: -9 + 3 = -6
2x = -6

Divide each side by '2'.
x = -3

Simplifying
x = -3

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