Answer:
Step-by-step explanation:
Rewrite the system of equations as:
Subtract the second equation from the first to isolate 
:
Plug in 
into any of the equations above and solve for 
:
Verify that the solution pair 
works 
Therefore, the solution to this system of equations is:
15+12+6= total number of marbles
33= total
Not clear marbles = 15+12 or 27
27 /33
.818181
82 percent
Hello!
To solve this you put 6 in for r
When you put this into a calculator you get the answer of 113.10
Hope this helps!
1.44 is more than 1.438 so the second brother
