(3y-20)+y=180

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Solution for (3y-20)+y=180 equation: 



(3y-20)+y=180

We move all terms to the left:

(3y-20)+y-(180)=0

We add all the numbers together, and all the variables

y+(3y-20)-180=0

We get rid of parentheses

y+3y-20-180=0

We add all the numbers together, and all the variables

4y-200=0

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

4y=200

y=200/4

y=50

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