0.4x+0.8y=40

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Solution for 0.4x+0.8y=40 equation: 


Simplifying
0.4x + 0.8y = 40

Solving
0.4x + 0.8y = 40

Solving for variable 'x'.

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

Add '-0.8y' to each side of the equation.
0.4x + 0.8y + -0.8y = 40 + -0.8y

Combine like terms: 0.8y + -0.8y = 0.0
0.4x + 0.0 = 40 + -0.8y
0.4x = 40 + -0.8y

Divide each side by '0.4'.
x = 100 + -2y

Simplifying
x = 100 + -2y

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