## anonymous one year ago Help

1. anonymous

2. anonymous

@Photon336

3. anonymous

@Vocaloid

4. Michele_Laino

here, we have a double inequality, so if we add 2 to all of three sides, we get: \[ - 5 + 2 \leqslant n - 2 + 2 \leqslant 2 + 2\] please simplify

5. anonymous

how would I simplify this?

6. Michele_Laino

what is -5+2=...?

7. anonymous

3?

8. Michele_Laino

ok! then what is 2+2=...?

9. anonymous

4

10. Michele_Laino

finally: what is -2+2=...?

11. anonymous

0?

12. Michele_Laino

ok! so the above inequality, is equivalent to this one: \[ - 3 \leqslant n \leqslant 4\]

13. anonymous

so that would be it?

14. Michele_Laino

yes! Now, what is the right option?

15. anonymous

3rd one

16. Michele_Laino

correct!

17. anonymous

OK thank you

18. Michele_Laino

:)