Răspuns :
A+(515:5×3-324:3+3×28)=532
A+(103×3-108+84)=532
A+(309-108+84)=532
A+(201+84)=532
A+285=532
A=532-285
A=247
A+(103×3-108+84)=532
A+(309-108+84)=532
A+(201+84)=532
A+285=532
A=532-285
A=247