3x+0.4y=5

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Solution for 3x+0.4y=5 equation: 


Simplifying
3x + 0.4y = 5

Solving
3x + 0.4y = 5

Solving for variable 'x'.

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

Add '-0.4y' to each side of the equation.
3x + 0.4y + -0.4y = 5 + -0.4y

Combine like terms: 0.4y + -0.4y = 0.0
3x + 0.0 = 5 + -0.4y
3x = 5 + -0.4y

Divide each side by '3'.
x = 1.666666667 + -0.1333333333y

Simplifying
x = 1.666666667 + -0.1333333333y

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