If 8(2r-3)-r=3(3r+2) what does r equal

8(2r-3)-r=3(3r+2) 16r-24-r=9r+6 16r-r-9r=6+24 6r=30 R=30÷6 R=5  

distance covered by pamela in 9 l of fuel = 99km

let us apply unitary method here.

distance covered by pamela in 1 l of fuel =99/9 =11 km

now let us find distance covered by pamela if she has 12 l of fuel.

distance covered in 12 l = distance covered in 1 l of fuel * 12

we know that distance covered by here in 1 l is 11 km.

so distance covered in 12 l of fuel = 11*12 = 132 km.