Question

Resolva as inequações U=Z
a) 2x+5<-3x-40
b) 6(x-5)-2(4x+2)>-100​

Answer 1

Resposta:

a)

2x + 5 < -3x - 40

2x + 3x < - 40 - 5

5x < - 45

x < - 9

b)

6 (x - 5) - 2 ( 4x + 2) > - 100

6x -30 - 8x - 4 > - 100

- 2x > - 100 + 34

- 2x > - 66

x < 33