-7x-7y=0

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Solution for -7x-7y=0 equation: 


Simplifying
-7x + -7y = 0

Solving
-7x + -7y = 0

Solving for variable 'x'.

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

Add '7y' to each side of the equation.
-7x + -7y + 7y = 0 + 7y

Combine like terms: -7y + 7y = 0
-7x + 0 = 0 + 7y
-7x = 0 + 7y
Remove the zero:
-7x = 7y

Divide each side by '-7'.
x = -1y

Simplifying
x = -1y

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