.50x+.20y=4.05

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Solution for .50x+.20y=4.05 equation: 


Simplifying
0.50x + 0.20y = 4.05

Solving
0.50x + 0.20y = 4.05

Solving for variable 'x'.

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

Add '-0.20y' to each side of the equation.
0.50x + 0.20y + -0.20y = 4.05 + -0.20y

Combine like terms: 0.20y + -0.20y = 0.00
0.50x + 0.00 = 4.05 + -0.20y
0.50x = 4.05 + -0.20y

Divide each side by '0.50'.
x = 8.1 + -0.4y

Simplifying
x = 8.1 + -0.4y

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