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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