elizabethpic2807 elizabethpic2807

15-02-2021
Mathematics

contestada

pls help me out lol. I’m desperate

pls help me out lol Im desperate class=

Respuesta :

Аноним Аноним

15-02-2021

Answer:

x=3

Step-by-step explanation:

[tex]\frac{x}{9} =\frac{8}{21+x}[/tex]

x²+21x-72=0

(x-3)(x+24)=0

x=3 or x=-24(rejected)

∴x=3

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