Question

calculati a+b+c stiind ca 165-9*a=8*b=30*c=120

Answer 1

165-9*a=120
-9*a=120-165
-9*a=-45
-a=-45/9
-a=-5
a=5
8*b=120
b=120/8
b=15
30*c=120
c=120/30
c=4
a+b+c=5+15+4=24

Answer 2

a=8
b=30
c=120
Suma este:
8+30+120=
=38+120=
=158