x+0.4y=3

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Solution for x+0.4y=3 equation: 


Simplifying
x + 0.4y = 3

Solving
x + 0.4y = 3

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.
x + 0.4y + -0.4y = 3 + -0.4y

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

Simplifying
x = 3 + -0.4y

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