20-0.5y=12.5

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Solution for 20-0.5y=12.5 equation: 


Simplifying
20 + -0.5y = 12.5

Solving
20 + -0.5y = 12.5

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 = 12.5 + -20

Combine like terms: 20 + -20 = 0
0 + -0.5y = 12.5 + -20
-0.5y = 12.5 + -20

Combine like terms: 12.5 + -20 = -7.5
-0.5y = -7.5

Divide each side by '-0.5'.
y = 15

Simplifying
y = 15

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