(4y-15)+(4y-15)+7y=180

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Solution for (4y-15)+(4y-15)+7y=180 equation: 



(4y-15)+(4y-15)+7y=180

We move all terms to the left:

(4y-15)+(4y-15)+7y-(180)=0

We add all the numbers together, and all the variables

7y+(4y-15)+(4y-15)-180=0

We get rid of parentheses

7y+4y+4y-15-15-180=0

We add all the numbers together, and all the variables

15y-210=0

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

15y=210

y=210/15

y=14

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