-3x+(-15)=12

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Solution for -3x+(-15)=12 equation: 


Simplifying
-3x + (-15) = 12
-3x + -15 = 12

Reorder the terms:
-15 + -3x = 12

Solving
-15 + -3x = 12

Solving for variable 'x'.

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

Add '15' to each side of the equation.
-15 + 15 + -3x = 12 + 15

Combine like terms: -15 + 15 = 0
0 + -3x = 12 + 15
-3x = 12 + 15

Combine like terms: 12 + 15 = 27
-3x = 27

Divide each side by '-3'.
x = -9

Simplifying
x = -9

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