0.5y-x=30

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Solution for 0.5y-x=30 equation: 


Simplifying
0.5y + -1x = 30

Reorder the terms:
-1x + 0.5y = 30

Solving
-1x + 0.5y = 30

Solving for variable 'x'.

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

Add '-0.5y' to each side of the equation.
-1x + 0.5y + -0.5y = 30 + -0.5y

Combine like terms: 0.5y + -0.5y = 0.0
-1x + 0.0 = 30 + -0.5y
-1x = 30 + -0.5y

Divide each side by '-1'.
x = -30 + 0.5y

Simplifying
x = -30 + 0.5y

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