Question

30.Resolva as inequacoes.

a) 3x + x/2 > 5/2

b) 2x/3 - x/2 < 1

c) x/3 - 2 < 4x/3 - 4

d) x/6 + x - 1/2 < 2

com conta pfv​

Answer 1

Explicação passo-a-passo:

a) 3x + x/2 > 5/2

4x/2 > 5/2

4x > 5/2 × 2

4x > 10/2

4x > 5

x > 5/2

b) 2x/3 - x/2 < 1

x/1 < 1

x< 1 × 1

x < 1

c) x/3 - 2 < 4x/3 - 4

x/3 - 4x/3 < - 4 + 2

- 3x < - 2 (-1)

3x > 2

x > 2/3

d) x/6 + x - 1/2 < 2

2x/6 - 1/2 <2

2x /6 < 2 + 1/2

2x /6 < 3/2

2x < 3/2 × 6

2x < 12/2

2x < 6

x< 6/2

x< 3