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Cat face x supra 100 ori 36 = 400 ?

Răspuns :

36x/100=400
36x=40000
x=40000:36(simplificam prin 2)
x=20000:18(simplificam prin 2)
x=10000:9
x/100×36=400⇒36x/100=400⇒36x=100×400⇒36x=40000⇒x=4000/36
sucees