Question

X减1等于二分之一X加四分之一X加八分之一怎么做

Answer 1

x-1=1/2x+1/4x+1/8

x-1=2/4x+1/4x+1/8

x-1=3/4x+1/8

x-3/4x=1+1/8

1/4x=9/8

x=9/8÷1/4

x=9/2