solve the ineguality 2x-1<3x+4<7_x

Answer 1

2x-1<3x+4<7-x

2x-1 < 3x+4
-1 < x+4
-5 < x

3x+4 < 7-x
4x+4 < 7
4x < 3
x < 3/4

so the solution set is
-5 < x < 3/4