.7x-.3y=.5

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Solution for .7x-.3y=.5 equation: 


Simplifying
0.7x + -0.3y = 0.5

Solving
0.7x + -0.3y = 0.5

Solving for variable 'x'.

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

Add '0.3y' to each side of the equation.
0.7x + -0.3y + 0.3y = 0.5 + 0.3y

Combine like terms: -0.3y + 0.3y = 0.0
0.7x + 0.0 = 0.5 + 0.3y
0.7x = 0.5 + 0.3y

Divide each side by '0.7'.
x = 0.7142857143 + 0.4285714286y

Simplifying
x = 0.7142857143 + 0.4285714286y

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