Y=-3(n-1)

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Solution for Y=-3(n-1) equation: 



=-3(Y-1)

We move all terms to the left:

-(-3(Y-1))=0



We calculate terms in parentheses: -(-3(Y-1)), so:

-3(Y-1)

We multiply parentheses

-3Y+3

Back to the equation:

-(-3Y+3)



We get rid of parentheses

3Y-3=0

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

3Y=3

Y=3/3

Y=1

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