.3x+.2y=80

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Solution for .3x+.2y=80 equation: 


Simplifying
0.3x + 0.2y = 80

Solving
0.3x + 0.2y = 80

Solving for variable 'x'.

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

Add '-0.2y' to each side of the equation.
0.3x + 0.2y + -0.2y = 80 + -0.2y

Combine like terms: 0.2y + -0.2y = 0.0
0.3x + 0.0 = 80 + -0.2y
0.3x = 80 + -0.2y

Divide each side by '0.3'.
x = 266.6666667 + -0.6666666667y

Simplifying
x = 266.6666667 + -0.6666666667y

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