3(x+3)-5(x+6)=15

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Solution for 3(x+3)-5(x+6)=15 equation:


Simplifying
3(x + 3) + -5(x + 6) = 15

Reorder the terms:
3(3 + x) + -5(x + 6) = 15
(3 * 3 + x * 3) + -5(x + 6) = 15
(9 + 3x) + -5(x + 6) = 15

Reorder the terms:
9 + 3x + -5(6 + x) = 15
9 + 3x + (6 * -5 + x * -5) = 15
9 + 3x + (-30 + -5x) = 15

Reorder the terms:
9 + -30 + 3x + -5x = 15

Combine like terms: 9 + -30 = -21
-21 + 3x + -5x = 15

Combine like terms: 3x + -5x = -2x
-21 + -2x = 15

Solving
-21 + -2x = 15

Solving for variable 'x'.

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

Add '21' to each side of the equation.
-21 + 21 + -2x = 15 + 21

Combine like terms: -21 + 21 = 0
0 + -2x = 15 + 21
-2x = 15 + 21

Combine like terms: 15 + 21 = 36
-2x = 36

Divide each side by '-2'.
x = -18

Simplifying
x = -18

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