term given by x+2,3x-1,and 4x-1 form an arithmetic sequence. find the value of x.

i didn't get it how to start this question and how it forms arithmetic sequence?

1 answer

x+2,3x-1,4x-1 find x A1=x+1,A2=3x-1,A3=4x-1 soln. A2-A1=A3-A2 (3x-1)-(x+2)=(4x-1)-(3x-1) , 2x+1=x,x=-1 so:the sequence is 1,-4,--5 if x=-1 substituted