-3x-12x=-105

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Solution for -3x-12x=-105 equation: 


Simplifying
-3x + -12x = -105

Combine like terms: -3x + -12x = -15x
-15x = -105

Solving
-15x = -105

Solving for variable 'x'.

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

Divide each side by '-15'.
x = 7

Simplifying
x = 7

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