Răspuns:
Explicație pas cu pas:
5×{42:6+[7×300:5-36:2)-60):18}=
5X(7+(2100:5-18)-60):18)
5X(7+(420-18)-60):18)
5x(7+402-60):18)
5X(349:18)
5x{42:6(420-18)-60:18}=5x{42:6+402-60:18}=5x{6+60-54+6}
=5x(66-60)
=5x6
=30
