-3x-7x=-40

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Solution for -3x-7x=-40 equation: 


Simplifying
-3x + -7x = -40

Combine like terms: -3x + -7x = -10x
-10x = -40

Solving
-10x = -40

Solving for variable 'x'.

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

Divide each side by '-10'.
x = 4

Simplifying
x = 4

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