Răspuns:
Explicație pas cu pas:
a=75-(-216+576):(-5)
a=75-360:(-5)
a=75+72
a=147
b=(-30.3)-63:58/24-370-1
b=-30.3-63x25/58-370-1
b=-303/10-60x25/58-370-1
b=-303/10-1575-370-1
b=-8331/145-370-1
b=-8331/145-371
b=-62126/145b= -428.45
c=(-5.7)+11+6:26.9
c=-5.7+11+6:269/10
c=-57+11+6x10/269
c=-57/10+11+60/269
c=14857/2690c=5.523
d=-62:(-25)+(-23/3+52)x13+82/22x3-(-29)x2
d=-62:(-25)+133/3x13+41/11x3+29x2
d=2.48+1729/3+123/11+58
d=62/25+1729/3+123/11+58
d=534596/825 d=647.99
a+b=147+(-428.45)=147-428.45=-281.45
d-c=647.99-5.523=642.467
sunt corecte daca ecuatiile au fost scrise corect