Question

resolva a inequacoes

a)- 2x > - 12

b)- 7 < 2 + x

c)2x + 7 < x + 3

d)2(x - 1) < 3x + 4

Answer 1

a)
- 2x > - 12

x > - 12/(-2)

x > 6


b)
- 7 < 2 + x

- 7 - 2 < x

x > - 9

c)
2x + 7 < x + 3

2x - x < 3 - 7

x < - 4

d)
2(x - 1) < 3x + 4

2x - 2 - 3x < 4

- x < 4 + 2

- x < 6

x < - 6

Forte abraço!