7x-9y=-20

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Solution for 7x-9y=-20 equation: 


Simplifying
7x + -9y = -20

Solving
7x + -9y = -20

Solving for variable 'x'.

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

Add '9y' to each side of the equation.
7x + -9y + 9y = -20 + 9y

Combine like terms: -9y + 9y = 0
7x + 0 = -20 + 9y
7x = -20 + 9y

Divide each side by '7'.
x = -2.857142857 + 1.285714286y

Simplifying
x = -2.857142857 + 1.285714286y

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