Question

Resolvas as questões:
A ) 5x + 10 ≤ 4x + 12
B ) 15x - 27 ≤ 13x - 25
C ) 2. (x - 5) + 3. (x - 30) > 0

Answer 1

Resposta:

A) 5x+10《 4X+12 =

5X+4X《 12-10 =

9X《 2

B) 15X-27《13x-25

= 15x-13x《 -25 + 27

= 2x 《 2

c ) 2.(x-5)+3.(x-30)>0

2x-10 + 3x - 90 >0

2x+3x -90 - 10 >0

5x -100>0