3(60-7y)+21y=180

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Solution for 3(60-7y)+21y=180 equation: 



3(60-7y)+21y=180

We move all terms to the left:

3(60-7y)+21y-(180)=0

We add all the numbers together, and all the variables

3(-7y+60)+21y-180=0

We add all the numbers together, and all the variables

21y+3(-7y+60)-180=0

We multiply parentheses

21y-21y+180-180=0

We add all the numbers together, and all the variables

=0

y=0/1

y=0

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