Question

120:[11+(7×7-9×9:a:3):8+2×4×3]=3

Answer 1

a=27 . =semnul inmultiri
120:[11+(7.7-9.9:a:3):8+2.4.3]=3
120:[11+(7.7-9.9:a:3):8+24=3
120:[11+(49-81:a:3):8+24]=3
120:[11+(49-b:3):8+24]=3
120:[11+(49-c):8+24]=3
120:[11+d:8+24]=3
120:(11+e+24)=3
120:f=3

f=120:3
f=40
e=40-11-24
e=5
d=5.8
d=40
c=40+3
c=43
b=49-43-3
b=3
a=81:3
a=27
am facut eu verificarea si a iesit