.30x-4=y

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Solution for .30x-4=y equation: 


Simplifying
0.30x + -4 = y

Reorder the terms:
-4 + 0.30x = y

Solving
-4 + 0.30x = y

Solving for variable 'x'.

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

Add '4' to each side of the equation.
-4 + 4 + 0.30x = 4 + y

Combine like terms: -4 + 4 = 0
0 + 0.30x = 4 + y
0.30x = 4 + y

Divide each side by '0.30'.
x = 13.33333333 + 3.333333333y

Simplifying
x = 13.33333333 + 3.333333333y

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