(Y-7)=-3(x+1)

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Solution for (Y-7)=-3(x+1) equation: 



(-7)=-3(Y+1)

We move all terms to the left:

(-7)-(-3(Y+1))=0

We add all the numbers together, and all the variables

-(-3(Y+1))-7=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+3-7=0

We add all the numbers together, and all the variables

3Y-4=0

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

3Y=4

Y=4/3

Y=1+1/3

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