Question

resolva as inequacoes -7 x < igual - 21

Answer 1

$-7x \leq -21 \\ \\ (-1)\cdot(-7x) \leq (-1)\cdot (-21) \\ \\ 7x \geq 21 \\ \\ x \geq \dfrac{21}{7} \\ \\ x \geq 3$

Bons estudos!

Answer 2

Olá, boa tarde ☺

Resolução:

-7x ≤ -21 .(-1)

7x ≥ 21.

x ≥ 21/7.

x≥ 3.

Bons estudos ✨