Step-by-step explanation:
[tex]10x - 5 = 65 \\ \\ \therefore \: 10x = 65 + 5 \\ \\ \therefore \: 10x = 70 \\ \\ \therefore \:x = \frac{70}{10} \\ \\ \huge \red{ \boxed{ \therefore \:x = 7}}[/tex]