99=2y+20

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Solution for 99=2y+20 equation:


Simplifying
99 = 2y + 20

Reorder the terms:
99 = 20 + 2y

Solving
99 = 20 + 2y

Solving for variable 'y'.

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

Add '-2y' to each side of the equation.
99 + -2y = 20 + 2y + -2y

Combine like terms: 2y + -2y = 0
99 + -2y = 20 + 0
99 + -2y = 20

Add '-99' to each side of the equation.
99 + -99 + -2y = 20 + -99

Combine like terms: 99 + -99 = 0
0 + -2y = 20 + -99
-2y = 20 + -99

Combine like terms: 20 + -99 = -79
-2y = -79

Divide each side by '-2'.
y = 39.5

Simplifying
y = 39.5

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