20-12+y=17

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Solution for 20-12+y=17 equation: 


Simplifying
20 + -12 + y = 17

Combine like terms: 20 + -12 = 8
8 + y = 17

Solving
8 + y = 17

Solving for variable 'y'.

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

Add '-8' to each side of the equation.
8 + -8 + y = 17 + -8

Combine like terms: 8 + -8 = 0
0 + y = 17 + -8
y = 17 + -8

Combine like terms: 17 + -8 = 9
y = 9

Simplifying
y = 9

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