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

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


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

Reorder the terms:
-3x + -3(15 + -3x) = -15
-3x + (15 * -3 + -3x * -3) = -15
-3x + (-45 + 9x) = -15

Reorder the terms:
-45 + -3x + 9x = -15

Combine like terms: -3x + 9x = 6x
-45 + 6x = -15

Solving
-45 + 6x = -15

Solving for variable 'x'.

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

Add '45' to each side of the equation.
-45 + 45 + 6x = -15 + 45

Combine like terms: -45 + 45 = 0
0 + 6x = -15 + 45
6x = -15 + 45

Combine like terms: -15 + 45 = 30
6x = 30

Divide each side by '6'.
x = 5

Simplifying
x = 5

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