Respuesta :

the answer is          [tex] \frac{3b+10}{a}[/tex]
TSO
[tex]10=ax -3b\\\\\sf Add~3b~on~both~sides\\\\10+3b = ax\\\\Divide~a~on~both~sides\\\\\boxed {x= \frac{10+3b}{a} }[/tex]
RELAXING NOICE
Relax