2*(6.5+-0.5y)+y=13

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Solution for 2*(6.5+-0.5y)+y=13 equation: 



2(6.5+-0.5y)+y=13

We move all terms to the left:

2(6.5+-0.5y)+y-(13)=0

We add all the numbers together, and all the variables

2(-0.5y)+y-13=0

We add all the numbers together, and all the variables

y+2(-0.5y)-13=0

We multiply parentheses

y+0y-13=0

We add all the numbers together, and all the variables

2y-13=0

We move all terms containing y to the left, all other terms to the right

2y=13

y=13/2

y=6+1/2

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