3/4 - 2/1(2/1.x - 1/8)=2/1

2/1(2/1.x-1/8)= 3/4-2/1= -5/4

2/1.x-1/8= -5/4:2/1=-5/8

2/1.x = -5/8+1/8= -1/2

x = -1/2:2/1= -1/4

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

There is a lot of information on the Internet, but it is difficult to know how much of it ______enough to trust is.

A. attainable

B. inevitable

C. presumable

D. reliable

2017x(2017-1):2=2 033 136

quãng đường AB dài 240 km