Question 20465
4a+6b= 32
a+b=7
Use substitution to get:
a =7-b
Substitute to get:
 4(7-b)+6b=32
28-4b+6b= 32
    2b= 4
    b=2
Substitute into a+b=7 to get 
  a = 5
So, a=5 and b=2

Cheers,
stan H.