2(30-y)+5y=180

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Solution for 2(30-y)+5y=180 equation: 



2(30-y)+5y=180

We move all terms to the left:

2(30-y)+5y-(180)=0

We add all the numbers together, and all the variables

2(-1y+30)+5y-180=0

We add all the numbers together, and all the variables

5y+2(-1y+30)-180=0

We multiply parentheses

5y-2y+60-180=0

We add all the numbers together, and all the variables

3y-120=0

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

3y=120

y=120/3

y=40

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