20+-2y=5

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Solution for 20+-2y=5 equation: 


Simplifying
20 + -2y = 5

Solving
20 + -2y = 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 + -2y = 5 + -20

Combine like terms: 20 + -20 = 0
0 + -2y = 5 + -20
-2y = 5 + -20

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

Divide each side by '-2'.
y = 7.5

Simplifying
y = 7.5

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