Question

$15 - 7x \geqslant 2x - 30$

Answer 1

Boa noite!

$15 - 7x \geqslant 2x - 30$

$15 - 7x - 2x \geqslant - 30$

$- 7x - 2x \geqslant - 30 - 15$

$- 9x \geqslant - 30 - 15$

$- 9x \geqslant - 45$

$x \leqslant 5$

Espero ter ajudado!

Answer 2

Resolução:

15 - 7x ≥ 2x - 30

- 7x - 2x ≥ - 30 - 15

- 9x ≥ - 45 * (-1)

9x ≤ 45

x ≤ 45 / 9

x ≤ 5