Question

3(2×-4) > 9(2-x)






5(x-10) +10 < 4x - 2(x+3)​

Answer 1

Resposta:

3(2× -4) > 9(2 -x)

6x -12 > 18 - 9x

6x +9x > 18 + 12

15x >  30

x > 30 / 15

x > 2

...

5(x -10) +10 < 4x - 2(x +3)

5x -50 + 10 < 3x -2x -6

5x -3x +2x < -6​ +50 -10

7x - 3x < -16 + 50

4x < 34

x < 34/4

x < 8,5

Explicação passo-a-passo: