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

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


Simplifying
(3x + 6) + (15 + -3x) = 0

Reorder the terms:
(6 + 3x) + (15 + -3x) = 0

Remove parenthesis around (6 + 3x)
6 + 3x + (15 + -3x) = 0

Remove parenthesis around (15 + -3x)
6 + 3x + 15 + -3x = 0

Reorder the terms:
6 + 15 + 3x + -3x = 0

Combine like terms: 6 + 15 = 21
21 + 3x + -3x = 0

Combine like terms: 3x + -3x = 0
21 + 0 = 0
21 = 0

Solving
21 = 0

Couldn't find a variable to solve for.

This equation is invalid, the left and right sides are not equal, therefore there is no solution.

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