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Ray Of Light [21]
3 years ago
11

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

Mathematics
2 answers:
umka21 [38]3 years ago
6 0

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

i hope it helps u.....

Harrizon [31]3 years ago
5 0
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
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