Question

9) Determine o valor de x nas inequações abaixo:

I) x – 4 > 7 II) 2x + 1 ≤ x + 6

III) 7x - 9 < 2x + 16​

Answer 1

$a)x - 4 > 7$

$x > 7 + 4$

$\color{red}x > 11$

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$b)2x + 1 \leqslant x + 6$

$2x - x \leqslant 6 - 1$

$\color{red}x = \leqslant 5$

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$c)7x - 9 < 2x + 16$

$7x - 2x < 16 + 9$

$5x < 25$

$x < \frac{25}{5}$

$\color{red}x < 5$

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Att, IzabelaCristina2006 ❤️