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19 votes
Solve this problem I'm confused
3y-9x=27

User Nate Reed
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2 Answers

5 votes


- 9x + 3y - 27 = 0 \\ a = - 9 \\ b = 3 \\ c = 0 \\ {b}^(2) - 4ac = 9 - 4( - 9)( - 27) = 0 \\ x = ( - b)/(2a) = ( - 3)/( - 18) = (1)/(6) \\ x = (1)/(6) \\ y = ( - 9 * (1)/(6) ) + 3y = 27 \\ ( - 3)/(2) + 3y = 27 \\ 3y = 27 + (3)/(2 ) \\ 3y = (57)/(2) \\ y = (57)/(6) = (19)/(2) \\

i hope it helps u.....

User Minimul
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3.5k points
8 votes
You’re supposed to graph the function. So basically you’ll want to make it so that y=, and then the rest of your formula.

So in this case y=3x+9
User Vaibhav Agarwal
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3.5k points