Olá
A)
[tex]\LARGE{}x + 9 > 10 \\ \LARGE{}x > 10 - 9 \\ \LARGE{}x > 1[/tex]
B)
[tex]\LARGE{}3x + 2 < 7 \\ \LARGE{}3x < 7 - 2 \\ \LARGE{}3x < 5 \\ \\ \LARGE{}x < \frac{5}{3} [/tex]
[tex]{\large\boxed{\boxed{ { \large \tt BONS \: \: ESTUDOS \: MEU \: ANJO \:<3 }}}}[/tex]
