Question

va rog dau cr si o in

sub forma de exercitiu

Answer 1

5.a+b+c=93

b=a+1

c=a+2

a+a+1+a+2=93

3a+3=93

3a=93-3

3a=90

a=90:3

a=30

b=30+1=31

c=30+2=32

6.a+r=57

r=3+a

3+a+a=57

2a+3=57

2a=57-3

2a=54

a=54:2

a=27

b=27+3

b=30