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Cat fac 27,5km+2x=284300ari

Răspuns :

27,5+2x=284300
2x=284300-27,5
2x=284272,5
x=284272,5:2
x=14136,25
km si ari sunt in plus
27,5km^2=275ari; 275+2x=284 300=>2x=284 300-275=>x=284 025÷2=142 012,5ari.