3y+2(5y+15)=-100

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Solution for 3y+2(5y+15)=-100 equation: 



3y+2(5y+15)=-100

We move all terms to the left:

3y+2(5y+15)-(-100)=0

We add all the numbers together, and all the variables

3y+2(5y+15)+100=0

We multiply parentheses

3y+10y+30+100=0

We add all the numbers together, and all the variables

13y+130=0

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

13y=-130

y=-130/13

y=-10

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