4.%=12/X+12怎么算?
问题描述:
4.%=12/X+12怎么算?
答
4.%=12/X+12
4.%*X=12+12*X
12*X-4%*X=-12
12*X-0.04*X=-12
11.96*X=-12
X=-12/11.96=-1又(0.04/11.96)=-1又(4/1196)=-1又(1/299)