Step-by-step explanation:
[tex]6x + 6 - x - 2 = 39[/tex]
[tex]5x + 4 = 39[/tex]
[tex]5x = 39 - 4[/tex]
[tex]5x = 35[/tex]
[tex]x = 35 \div 5[/tex]
[tex]x = 7[/tex]
