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vovikov84 [41]
2 years ago
5

Pls help me out lol. I’m desperate

Mathematics
1 answer:
tensa zangetsu [6.8K]2 years ago
6 0

Answer:

x=3

Step-by-step explanation:

\frac{x}{9} =\frac{8}{21+x}

x²+21x-72=0

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

x=3 or x=-24(rejected)

∴x=3

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