-7x+3y=-20

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Solution for -7x+3y=-20 equation: 


Simplifying
-7x + 3y = -20

Solving
-7x + 3y = -20

Solving for variable 'x'.

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

Add '-3y' to each side of the equation.
-7x + 3y + -3y = -20 + -3y

Combine like terms: 3y + -3y = 0
-7x + 0 = -20 + -3y
-7x = -20 + -3y

Divide each side by '-7'.
x = 2.857142857 + 0.4285714286y

Simplifying
x = 2.857142857 + 0.4285714286y

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