-x-6x=-21

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Solution for -x-6x=-21 equation: 


Simplifying
-1x + -6x = -21

Combine like terms: -1x + -6x = -7x
-7x = -21

Solving
-7x = -21

Solving for variable 'x'.

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

Divide each side by '-7'.
x = 3

Simplifying
x = 3

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