Question

a) x + 15 > 21
b) x – 18 < 23
c) 11 – 9x ≥ 2x
d) 8x + 19 ≤ 10x + 11
e) 3 . (x – 1) – 2x ≥ 13
f) 9 . (x – 2) – 5 . (x – 3) ≤ 1

Poderiam, me ajudar? Agradecido

Answer 1

a) x>21-15
x>6

b)x<23+18
x<41

c) -9x-2x ≥ -11
-11x ≥ -11
x ≥-11÷ -11
x ≥ 1

d)8x - 10x ≤ 11-19
-2x ≤ 11-19
-2x ≤ -8
x ≥ -8 ÷ -2
x ≥ 4

e) x - 1-2x ≥ 13
- x 1 ≥ 13
-x ≥ 13 + 1
x ≤ -14

f)4x -18+15 ≥ 1
4x - 3 ≥ 1
4x ≥1+3
4x ≥ 4
x ≥ 4 ÷ 4
x ≥ 1