Answer:
I'm just assuming here ok so I'm sorry if I'm wrong but I think it took them 12hrs
Check the picture below.
n=13/7
Step-by-step explanation:
2n+4+6*2=-9*2+8(2n+1)
2n+4+12=-18+16n+8
16+18=16n-2n+8
34=14n+8
34-8=14n
26=14n
take a actual picture maby
