Question

Resolva as inequações considerando U = R.

a) 5(x + 2) < 2(2x – 17)


b) x/3 + x > x/6 + 7

Answer 1

Resposta:

a) x <-24

b) x > 6

Explicação passo-a-passo:

a) 5(x + 2) < 2(2x – 17)

5x+10 < 4x - 34

5x-4x < -34 +10

x< -24

b) x/3 + x > x/6 + 7

MMC (3;6)= 6

2x +6x > x + 42

8x -x > 42

7x > 42

x > 6