13p-a+10 ,если 3a+5p-8/a-2p+1=4

(3a+5p-8)/ (a-2p+1)=43a+5p-8=4a-8p+44a-8p+4-3a-5p+8=0a-13p+12=0-(13p-a-12)=013p-a-12=013p-a-12+22-22=013p-a+10=22