Which two expressions are equivalent to 7x+1

Question

2 (2x-1) + 3 (x + 1)
5 (x + 1) + 2 (x - 2)
7(x -1)+2
7(x -1)+3

Answer 1

2 (2x-1) + 3 (x + 1) and 5 (x + 1) + 2 (x - 2) are the two expressions that are equivalent to 7x + 1.