-3x+3(-x-3)=81

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Solution for -3x+3(-x-3)=81 equation:


Simplifying
-3x + 3(-1x + -3) = 81

Reorder the terms:
-3x + 3(-3 + -1x) = 81
-3x + (-3 * 3 + -1x * 3) = 81
-3x + (-9 + -3x) = 81

Reorder the terms:
-9 + -3x + -3x = 81

Combine like terms: -3x + -3x = -6x
-9 + -6x = 81

Solving
-9 + -6x = 81

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + -6x = 81 + 9

Combine like terms: -9 + 9 = 0
0 + -6x = 81 + 9
-6x = 81 + 9

Combine like terms: 81 + 9 = 90
-6x = 90

Divide each side by '-6'.
x = -15

Simplifying
x = -15

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