5x+7x=-129

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Solution for 5x+7x=-129 equation: 


Simplifying
5x + 7x = -129

Combine like terms: 5x + 7x = 12x
12x = -129

Solving
12x = -129

Solving for variable 'x'.

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

Divide each side by '12'.
x = -10.75

Simplifying
x = -10.75

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