Răspuns :
Răspuns:
a=28:7*2=4*2=6
b=72:8+5=8+5=13
c=30:3:5=10:5=2
6+13+2=19+2=21
6+13-2=19-2=17
13-6+2=7+2=9
Răspuns:
a=28:7*2=4*2=8 ; b=72:9+5=8+5=13 ; c=30:3:5=2 ; a+b+c+b-c+b-a+c=3b+c=3*13+2=39+2=41
Explicație pas cu pas:
Răspuns:
a=28:7*2=4*2=6
b=72:8+5=8+5=13
c=30:3:5=10:5=2
6+13+2=19+2=21
6+13-2=19-2=17
13-6+2=7+2=9
Răspuns:
a=28:7*2=4*2=8 ; b=72:9+5=8+5=13 ; c=30:3:5=2 ; a+b+c+b-c+b-a+c=3b+c=3*13+2=39+2=41
Explicație pas cu pas: