Respuesta :

17.

n - 0.1 ≤ 1.4

n - 0.1 + 0.1 ≤ 1.4 + 0.1

n ≤ 1.5

18.

7 > z + 2/3

-z > 2/3 -7

-z > -6

z < 6

19.

22 ≥ c - 2.1

-c ≥ -2.1 - 22

-c ≥ -24.1

c ≤ 24.1

20.

13 ≥ 9 + b

-b ≥ 9 - 13

-b ≥ -4

b ≤ 4

21.

14 1/2 < b -1 1/4

-b < -1 1/4 - 14 1/2

-b < -15 3/4

b > 15 3/4

22.

t + 1/5 < 2 7/10

t < 2 7/10 - 1/5

t < 2 5/10

t < 2 1/2