7y+3=4y-18=1

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Solution for 7y+3=4y-18=1 equation: 



7y+3=4y-18=1

We move all terms to the left:

7y+3-(4y-18)=0

We get rid of parentheses

7y-4y+18+3=0

We add all the numbers together, and all the variables

3y+21=0

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

3y=-21

y=-21/3

y=-7

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