-13=9-y

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Solution for -13=9-y equation:


Simplifying
-13 = 9 + -1y

Solving
-13 = 9 + -1y

Solving for variable 'y'.

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

Add 'y' to each side of the equation.
-13 + y = 9 + -1y + y

Combine like terms: -1y + y = 0
-13 + y = 9 + 0
-13 + y = 9

Add '13' to each side of the equation.
-13 + 13 + y = 9 + 13

Combine like terms: -13 + 13 = 0
0 + y = 9 + 13
y = 9 + 13

Combine like terms: 9 + 13 = 22
y = 22

Simplifying
y = 22

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