-7x-9x=-80

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Solution for -7x-9x=-80 equation: 


Simplifying
-7x + -9x = -80

Combine like terms: -7x + -9x = -16x
-16x = -80

Solving
-16x = -80

Solving for variable 'x'.

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

Divide each side by '-16'.
x = 5

Simplifying
x = 5

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