Question

a) -8(8-4x-7)menor igual 2x+7

Answer 1

-64+32x+56 ≤ 2x+7

32x-8 ≤ 2x+7

32x-2x ≤ 7+8

30x ≤ 15

   x ≤ 15/30

   x ≤ 1/2

Resposta → S= {x ∈ R | x ≤ 1/2}