First, to make it easier, change the mixed fraction to improper
1 1/3=4/3
R=Robert
S=Steven
R=4/3(S)
R-8=2(S)-8)
R-8=2S-16
4/3(S)=2S-8
-2/3 (S)=-8
Multiply both sides by -3 to remove the fraction and to remove the negative sign
2S=24
Divide both sides by 2
S=12
Roger's Age=4/3 (S)
Roger's Age=4/3 (12)
Roger's Age=16
