9y-7x=-90

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Solution for 9y-7x=-90 equation: 


Simplifying
9y + -7x = -90

Reorder the terms:
-7x + 9y = -90

Solving
-7x + 9y = -90

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 = -90 + -9y

Combine like terms: 9y + -9y = 0
-7x + 0 = -90 + -9y
-7x = -90 + -9y

Divide each side by '-7'.
x = 12.85714286 + 1.285714286y

Simplifying
x = 12.85714286 + 1.285714286y

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