4(-x)=-40

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Solution for 4(-x)=-40 equation: 


Simplifying
4(-1x) = -40

Remove parenthesis around (-1x)
4 * -1x = -40

Multiply 4 * -1
-4x = -40

Solving
-4x = -40

Solving for variable 'x'.

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

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

Simplifying
x = 10

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