2x+5=x+18
2x-x=18-5
x=13
x+1:2=2x:5
x-2x:5=-1/2
3/5x=-1/2
x=-5/6那二分之x+1=五分之2x怎么算？x/2+1=2x/5x/2-2x/5=-15x/10-4x/10=-1x/10=-1x=-10