15=-3x-6(-x+3)

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Solution for 15=-3x-6(-x+3) equation:


Simplifying
15 = -3x + -6(-1x + 3)

Reorder the terms:
15 = -3x + -6(3 + -1x)
15 = -3x + (3 * -6 + -1x * -6)
15 = -3x + (-18 + 6x)

Reorder the terms:
15 = -18 + -3x + 6x

Combine like terms: -3x + 6x = 3x
15 = -18 + 3x

Solving
15 = -18 + 3x

Solving for variable 'x'.

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

Add '-3x' to each side of the equation.
15 + -3x = -18 + 3x + -3x

Combine like terms: 3x + -3x = 0
15 + -3x = -18 + 0
15 + -3x = -18

Add '-15' to each side of the equation.
15 + -15 + -3x = -18 + -15

Combine like terms: 15 + -15 = 0
0 + -3x = -18 + -15
-3x = -18 + -15

Combine like terms: -18 + -15 = -33
-3x = -33

Divide each side by '-3'.
x = 11

Simplifying
x = 11

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