7y=(4y-15)

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



7y=(4y-15)

We move all terms to the left:

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



We calculate terms in parentheses: -((4y-15)), so:

(4y-15)

We get rid of parentheses

4y-15

Back to the equation:

-(4y-15)



We get rid of parentheses

7y-4y+15=0

We add all the numbers together, and all the variables

3y+15=0

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

3y=-15

y=-15/3

y=-5

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