Y=4x+9;(-2,1)

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Solution for Y=4x+9;(-2,1) equation: 



=4Y+9(-2.1)

We move all terms to the left:

-(4Y+9(-2.1))=0



We calculate terms in parentheses: -(4Y+9(-2.1)), so:

4Y+9(-2.1)

We add all the numbers together, and all the variables

4Y-18.9

Back to the equation:

-(4Y-18.9)



We get rid of parentheses

-4Y+18.9=0

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

-4Y=-18.9

Y=-18.9/-4

Y=4+1/1.37931034483

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