Question

Solve for x: 1 < x + 3 < 4

Answer 1

Let's solve your inequality

1<x+3<4 = −2<x<1

Answer 2

undo what's done to x:

1 - 3 < x + 3 - 3 < 4 - 3, so

-2 < x < 1

this SHOULD be your answer-- if it's not for some reason, let me know.