Автор - karnak2004

18*x=90.720:x=4.350:=5*10.x:30=60*5.x*100=4500.x:10=4500 решите уравнение

Ответ

Автор - egorkadv2002
18*х=90
х=90:18
х=5

720:х=4
х=720:4
х=180

350:х=5*10
х=350:(5*10)
х=7

х:30=60*5
х=60*5*30
х=9000

х*100=4500
х=4500:100
х=45

х:10=4500
х=4500*10
х=45000

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