repede va rog dau coroană
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Răspuns:
1. a+b=100
b= a+20
a____ suma 100
b____+20
100-20=80(suma a doua nr egale)
80:2=40(un nr-a)
b=40+20
b=60
2.a+b=300
b=a*3
a,b=?
a_ suma 300
b_ _ _
3+1=4(segmente egale)
300:4=75(un nr-a)
75*3=25(b)