Question

{13492-（8247+x）}/（8247+x）*100%=20% 求x怎么解?

Answer 1

{13492-(8247+x)}/(8247+x)*100%=20%

{13492/(8247+x)-1}*100%=20%

13492/(8247+x)=1.2

(8247+x)*1.2=13492

8247+x=3373/3

x=3373/3-8427

x=21908/3