Question

resolvo a desigualdade?


A) 13+9x<1

B (x-2)<-2

C) (3x+4)≤2​

Answer 1

a)

$13 + 9x < 1 \\ 9x < 1 - 13 \\ 9x < - 12 \\ x < - \frac{12}{9}$

$x < - \frac{4}{3}$

b)

$x - 2 < - 2 \\ x < 2 - 2 \\ x < 0$

c)

$3x + 4 \leqslant 2 \\ 3x \leqslant 2 - 4 \\ 3x \leqslant - 2 \\ x \leqslant - \frac{2}{3}$

Answer 2

Vamos resolver as inequações.

A) 13+9x<1

9x < 1 - 13

9x < -12

x < -12/9

x < - 4/3

B (x-2)<-2

x < -2 + 2

x < 0

C) (3x+4)≤2

3x ≤ 2 - 4

3x ≤ -2

x ≤ -2/3