Răspuns :
Explicație pas cu pas:
F:7+25=900-(300-48×5)×9
F:7+25=900-(300-240)×9
F:7+25=900-60×9
F:7+25=900-540
F:7+25=360
F:7=360-25
F:7=335
F=335×7
F=2.345
Explicație pas cu pas:
f:7+25=900-(300-48×5)×9
f:7+25=900-(300-240)×9
f:7+25=900-60×9
f:7+25=900-540
f:7+25=360
f:7=360-25
f:7=335
f=335×7
f=2 345