Срочно!!!!!!!!!!!!!!!!!!

Question

Срочно!!!!!!!!!!!!!!!!!!

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Comments

КАКОЙ КЛАСС?

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ОКЕЙ

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GJGHJ,E.

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ПОПРОБУЮ

Answer 1

2/3 / 4/9(х-1)=4/5-1/20
2/3×9/4(х-1)=16/20-1/20
3/2(х-1)=3/4
1/(х-1)=1/2
х-1=2
х=2+1
х=3