A mathematics problem of grade two in junior high school, about inequality. Solving! Speed! It is known that integer x satisfies inequality (2x + 1) / 3 - 1 at the same time

A mathematics problem of grade two in junior high school, about inequality. Solving! Speed! It is known that integer x satisfies inequality (2x + 1) / 3 - 1 at the same time

First, we solve the inequality and get - 2 / 3=