Question

(a+b+c) :3=22. (a+b) :2=28 b=a:0,6

Answer 1

(a+b+c) ÷3= 22
a+b+c= 22×3
a+b+c= 66

(a+b) ÷2= 28
a+b= 28×2
a+b= 56

56+c= 66
c= 66-56
c= 10

b=a÷0,6= 10a÷6
10a÷6+a=56 |×6
10a+6a= 56×6
16a= 336
a= 336÷16
a= 21

b= 56-a
b= 56-21
b= 35