0.4x-0.3y=1.4

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Solution for 0.4x-0.3y=1.4 equation: 


Simplifying
0.4x + -0.3y = 1.4

Solving
0.4x + -0.3y = 1.4

Solving for variable 'x'.

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

Add '0.3y' to each side of the equation.
0.4x + -0.3y + 0.3y = 1.4 + 0.3y

Combine like terms: -0.3y + 0.3y = 0.0
0.4x + 0.0 = 1.4 + 0.3y
0.4x = 1.4 + 0.3y

Divide each side by '0.4'.
x = 3.5 + 0.75y

Simplifying
x = 3.5 + 0.75y

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