0.8x+y=4

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Solution for 0.8x+y=4 equation: 


Simplifying
0.8x + y = 4

Solving
0.8x + y = 4

Solving for variable 'x'.

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

Add '-1y' to each side of the equation.
0.8x + y + -1y = 4 + -1y

Combine like terms: y + -1y = 0
0.8x + 0 = 4 + -1y
0.8x = 4 + -1y

Divide each side by '0.8'.
x = 5 + -1.25y

Simplifying
x = 5 + -1.25y

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