13-y-y=3

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Solution for 13-y-y=3 equation: 


Simplifying
13 + -1y + -1y = 3

Combine like terms: -1y + -1y = -2y
13 + -2y = 3

Solving
13 + -2y = 3

Solving for variable 'y'.

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

Add '-13' to each side of the equation.
13 + -13 + -2y = 3 + -13

Combine like terms: 13 + -13 = 0
0 + -2y = 3 + -13
-2y = 3 + -13

Combine like terms: 3 + -13 = -10
-2y = -10

Divide each side by '-2'.
y = 5

Simplifying
y = 5

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