Răspuns:
Explicație pas cu pas:
500-[(16x18-192:f):7+14x5+10]:4x7+9=299
500-[(16x18-192:f):7+14x5+10]:4x7=290
[(288-192:f):7+14x5+10]:4x7=500-281
[(288-192:f):7+14x5+10]:4x7=210
[(288-192:f):7+70+10]=210:7x4
[(288-192:f):7+70+10]=30x4
[(288-192:f):7+70+10]=120
[(288-192:f):7=120-10-70
[(288-192:f):7=40
(288-192:f)=280
192:f=288-280
192:f=8
f=192:8
f=24
