Answer: [tex]x=2[/tex]
Step-by-step explanation:
[tex]7(5+2x)+x=65\\[/tex]
distribute 7
[tex]35+14x+x=65[/tex]
combine like terms and rearrange
[tex]15x+35=65[/tex]
subtract 35 from both sides
[tex]15x=30[/tex]
divide both sides by 15
[tex]x=2[/tex]
