-2x-2x=21-5

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Solution for -2x-2x=21-5 equation: 


Simplifying
-2x + -2x = 21 + -5

Combine like terms: -2x + -2x = -4x
-4x = 21 + -5

Combine like terms: 21 + -5 = 16
-4x = 16

Solving
-4x = 16

Solving for variable 'x'.

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

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

Simplifying
x = -4

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