Răspuns:
Explicație pas cu pas:
500-[(16*18-192:f ):7 +14x5+10] :4 x7 +5=299
500- [( 288-192:f ):7+70+10]:4x7+5=299
500-[(288-192:f) :7+80 ] :4x7+5=299
[ (288-192:f) :7+80] :4 x7+5=500-299
[ (288-192:f) :7+80 ] :4x7+5=201
[ (288-192:f) :7+80 ] :4x7=201-5
[( 288-192:f ):7+80 ] :4x7=196
[ (288-192:f) :7+80 ] :4=196: 7
[ (288-192:f ):7+80] :4= 28
(288-192 :f):7 +80=28x4
(288-192:f):7+80=112
(288-192:f) :7=112-80
(288-192;f):7 =32
(288-192:f)=32x7
288-192:f=224
192:f=288-224
192:f=64
f= 192:64
f= 3
