Question

cum rezolv exercițiile​

Answer 1

a.

$2x + 3 \geqslant - 9$

$2x \geqslant - 9 - 3$

$2x \geqslant - 12$

$x \geqslant - 6$

b.

$3 + 4x \geqslant 7$

$3x \geqslant 7 - 4$

$3x \geqslant 3$

$x \geqslant 1$

c.

$- 11 + 12x < - 23$

$12x < - 23 + 11$

$12x < - 12$

$x < - 1$

d.

$3 \times (x + 1) < - 18$

$x + 1 < - 6$

$x < - 6 - 1$

$x < - 7$

e.

$5 \times (x - 1) < 0$

$x - 1 < 0$

$x < 1$