Salut!
[tex]2 \times (x + 4) - 8 = 16 \\ 2 \times x - 8 - 8 = 16 \\ 2 \times x - 8 + 8 = 16 \\ 2 \times x - 16 = 16 \\ 2 \times x = 16 + 16 \\ 2 \times x = 32 \\ x = 32 \div ( - 2) \\ x = - 16[/tex]
[tex]x \times (7 - 5) - 7 < 2 \times ( - 1) \\ x \times 2 - 7 < - 2 \ \\ 2 \times x - 7 < - 2 \\ 2 \times x < - 2 + 7 \\ 2 \times x < 5 \\ x > - \frac{5}{2} [/tex]
