Explicație pas cu pas:
17+81÷9-1×2×[(a÷7+2)÷2-4÷2×2]+32-3×8=6+56÷8+5
17+9-2×[(a÷7+2)÷2-4÷2×2]+32-24=6+7+5
17+9-2a÷14+4÷2-8÷4×4+32-24=13+5
17+9-2a÷14+2-2×4+32-24=18
17+9-2a÷14+2-8+32=42
17+9-2a÷14+2-8=10
17+9-2a÷14+2=18
17+9-2a÷14=16
17+9-2a=224
224=17+9-2a
9-2a=224-17
9-2a=207
2a=216
a=216÷2
a=108