200-.8x=400-4y

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Solution for 200-.8x=400-4y equation: 


Simplifying
200 + -0.8x = 400 + -4y

Solving
200 + -0.8x = 400 + -4y

Solving for variable 'x'.

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

Add '-200' to each side of the equation.
200 + -200 + -0.8x = 400 + -200 + -4y

Combine like terms: 200 + -200 = 0
0 + -0.8x = 400 + -200 + -4y
-0.8x = 400 + -200 + -4y

Combine like terms: 400 + -200 = 200
-0.8x = 200 + -4y

Divide each side by '-0.8'.
x = -250 + 5y

Simplifying
x = -250 + 5y

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