Răspuns:
a : 4 + b x 2 + 10 x c = 789
Explicație pas cu pas:
a = 183 - (172 + 160 ) : 4+ 25 x (5 x 3 - 15)
a = 183 - 332 : 4+ 25 x (15 - 15)
a = 183 - 83+ 25 x 0
a = 100
b = 25 + 3 x [21 - (7-7) : 2] : 9
b = 25 + 3 x (21 - 0 : 2) : 9
b = 25 + 3 x 21 : 9
b = 25 + 63 : 9
b = 25 + 7 =
b = 32
c = [(20 + 4 ) : 6 - 4 ] x 35 +2 x (5 x 15 - 2 x 3 x 5)
c = (24 : 6 - 4) x 35 +2 x (75 - 30)
c = (4 - 4) x 35 + 2 x 35
c = 0 + 70
c = 70
a : 4 + b x 2 + 10 x c
= 100 : 4 + 32 x 2 +10 x 70
= 25 + 64 +700
= 789
