Question

aflati numerele necunoscute 4*b=32 ,c*3=21,5*d=30 schimbati semnul * cu +

Answer 1

4+b=32
b=32-4
b=28
c+3=21
c=21-3
c=17
5+d=30
d=30-5
d=25

Answer 2

b=32-4, b=28. c=21-3,c=18,  d=30-5, d=25...sp.aj.