3x-3(-6x-15)=-18

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Solution for 3x-3(-6x-15)=-18 equation:


Simplifying
3x + -3(-6x + -15) = -18

Reorder the terms:
3x + -3(-15 + -6x) = -18
3x + (-15 * -3 + -6x * -3) = -18
3x + (45 + 18x) = -18

Reorder the terms:
45 + 3x + 18x = -18

Combine like terms: 3x + 18x = 21x
45 + 21x = -18

Solving
45 + 21x = -18

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 + 21x = -18 + -45

Combine like terms: 45 + -45 = 0
0 + 21x = -18 + -45
21x = -18 + -45

Combine like terms: -18 + -45 = -63
21x = -63

Divide each side by '21'.
x = -3

Simplifying
x = -3

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