-3(x-1)+6x=-21

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Solution for -3(x-1)+6x=-21 equation:


Simplifying
-3(x + -1) + 6x = -21

Reorder the terms:
-3(-1 + x) + 6x = -21
(-1 * -3 + x * -3) + 6x = -21
(3 + -3x) + 6x = -21

Combine like terms: -3x + 6x = 3x
3 + 3x = -21

Solving
3 + 3x = -21

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 + 3x = -21 + -3

Combine like terms: 3 + -3 = 0
0 + 3x = -21 + -3
3x = -21 + -3

Combine like terms: -21 + -3 = -24
3x = -24

Divide each side by '3'.
x = -8

Simplifying
x = -8

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