1
[tex]2x + 4 = 16 \\ \\ 2x = 16 - 4 \\ \\ 2x = 12 | \div 2 \\ \\ x = 6[/tex]
2
[tex]4x - 9 = 15 \\ \\ 4x = 15 + 9 \\ \\ 4x = 24 | \div 4 \\ \\ x = 6[/tex]
3
[tex]9 + 9x = 27 \\ \\ 9x = 27 - 9 \\ \\ 9x = 18 | \div 9 \\ \\ x = 2[/tex]
4
[tex]5x - 5 = 12 \\ \\ 5x = 12 + 5 \\ \\ 5x = 17 | 5 \\ \\ x = \frac{17}{5} = 3 \frac{2}{5 } = 3.4[/tex]
5
[tex] \frac{1}{4} x - 2 = 6 \\ \\ 0.25x = 6 + 2 \\ \\ 0.25x = 8 | \div 0.25 \\ \\ x = 32[/tex]
