Question

Dau coroana si 10 puncte.

Answer 1

a+6=f
b-6=f
c:6=f
d*6=f
e-12=f
a=f-6
b=f+6
c=6f
d=f:6
e=f+12
a+b+c+d+e+f=177
f-6+f+6+6f+f:6+f+12+f=177
10f+f:6=165|*6
61f=6*165
f=990:61
a=990:61-6=(990-61*6):61=624:61
b=990:61+6=1356:61
c=990:61*6=5940:61
d=990:61:6=165:61
e=990:61+12=(990+12*61):61=
Verific:
624/61+1356/61+5940/61+165/61+1722/61+990/61=10797/61=177