Question 168555
75A+50B=600
3A+  6B=60------>where A is the number of A cabs and B is the number of B cabs
:
solve  for A in the  2nd equation and plug in that value to 1st equation:
:
3A=60-6B--->A=20-2B
:
75(20-2B)+50B=600

1500-150B+50B=600

-100B=-900

{{{highlight(B=9)}}} B cabinets
3A+6(9)=60--->3A=6
{{{highlight(A=2)}}} A cabinets