-3x-4x=-18

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Solution for -3x-4x=-18 equation: 


Simplifying
-3x + -4x = -18

Combine like terms: -3x + -4x = -7x
-7x = -18

Solving
-7x = -18

Solving for variable 'x'.

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

Divide each side by '-7'.
x = 2.571428571

Simplifying
x = 2.571428571

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