20-2Y=15

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Solution for 20-2Y=15 equation: 


Simplifying
20 + -2Y = 15

Solving
20 + -2Y = 15

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 + -2Y = 15 + -20

Combine like terms: 20 + -20 = 0
0 + -2Y = 15 + -20
-2Y = 15 + -20

Combine like terms: 15 + -20 = -5
-2Y = -5

Divide each side by '-2'.
Y = 2.5

Simplifying
Y = 2.5

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