-4x-4y=21

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Solution for -4x-4y=21 equation: 


Simplifying
-4x + -4y = 21

Solving
-4x + -4y = 21

Solving for variable 'x'.

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

Add '4y' to each side of the equation.
-4x + -4y + 4y = 21 + 4y

Combine like terms: -4y + 4y = 0
-4x + 0 = 21 + 4y
-4x = 21 + 4y

Divide each side by '-4'.
x = -5.25 + -1y

Simplifying
x = -5.25 + -1y

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