Question

Afla necunoscutul.
17+81:9-1x2[(a:7+14:7+2):2-4:2x2]+32-3x8=6+56:8+5

Answer 1

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