12-y=13+y

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Solution for 12-y=13+y equation:


Simplifying
12 + -1y = 13 + y

Solving
12 + -1y = 13 + y

Solving for variable 'y'.

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

Add '-1y' to each side of the equation.
12 + -1y + -1y = 13 + y + -1y

Combine like terms: -1y + -1y = -2y
12 + -2y = 13 + y + -1y

Combine like terms: y + -1y = 0
12 + -2y = 13 + 0
12 + -2y = 13

Add '-12' to each side of the equation.
12 + -12 + -2y = 13 + -12

Combine like terms: 12 + -12 = 0
0 + -2y = 13 + -12
-2y = 13 + -12

Combine like terms: 13 + -12 = 1
-2y = 1

Divide each side by '-2'.
y = -0.5

Simplifying
y = -0.5

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