31+y=13

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Solution for 31+y=13 equation: 


Simplifying
31 + y = 13

Solving
31 + y = 13

Solving for variable 'y'.

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

Add '-31' to each side of the equation.
31 + -31 + y = 13 + -31

Combine like terms: 31 + -31 = 0
0 + y = 13 + -31
y = 13 + -31

Combine like terms: 13 + -31 = -18
y = -18

Simplifying
y = -18

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