20+.5y=x

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Solution for 20+.5y=x equation: 


Simplifying
20 + 0.5y = x

Solving
20 + 0.5y = x

Solving for variable 'y'.

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

Add '-20' to each side of the equation.
20 + -20 + 0.5y = -20 + x

Combine like terms: 20 + -20 = 0
0 + 0.5y = -20 + x
0.5y = -20 + x

Divide each side by '0.5'.
y = -40 + 2x

Simplifying
y = -40 + 2x

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