👤

Afla valorile lui a si b
7*a-15:3+9=60
16+72:b*10-32=74
Va rog verificati-va inainde de ami da rasp. Si ii rog ca alty sa nu mai faca mistou de mine!!!
Cine rasp. Corect primeste 80p.


Răspuns :

la prima:
7*a-15:3+9=60
7a-5=60-9
7a-5=51
7a=51+5
7a=56
a=56:7
a=8

a2a:
16+72:b*10-32=74
16+72:10b-32=74
16+72:10b=74+32
16+72:10b=106
72:10b=106-16
72:10b=90
10b=90*72
10b= 6480
b=6480:10
b=648