Question

Pfv façam as contas passo a passo

Answer 1

Resposta

A) x < 3

B) x <

C) 0 ≤

D) x < 5/8 ou x < 0,625

E) x ≤ -10

Explicação passo a passo:

A)x+7 < 10

x < 10-7

 x < 3

B) 10x < 30

 x < 30/10

  x < 3

C) 2-x ≤ x+

 -x+x ≤ 8 -2

 0 ≤

D) 12x < 4x+

 12x-4x < 5

 8x < 5

 x < 5/

E) 4 (x+5) ≤ 3x+10

 4x+20 ≤ 3x+10

 4x-3x ≤ 10-20

 x ≤ -10