13+11=10y+12-9y

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Solution for 13+11=10y+12-9y equation:


Simplifying
13 + 11 = 10y + 12 + -9y

Combine like terms: 13 + 11 = 24
24 = 10y + 12 + -9y

Reorder the terms:
24 = 12 + 10y + -9y

Combine like terms: 10y + -9y = 1y
24 = 12 + 1y

Solving
24 = 12 + 1y

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.
24 + -1y = 12 + 1y + -1y

Combine like terms: 1y + -1y = 0
24 + -1y = 12 + 0
24 + -1y = 12

Add '-24' to each side of the equation.
24 + -24 + -1y = 12 + -24

Combine like terms: 24 + -24 = 0
0 + -1y = 12 + -24
-1y = 12 + -24

Combine like terms: 12 + -24 = -12
-1y = -12

Divide each side by '-1'.
y = 12

Simplifying
y = 12

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