Answer :
[tex]905 = 5a[/tex] {divide both sides by 5 since you need to find a}
[tex] \frac{905}{5}= \frac{5a}{5} [/tex] {solve further}
[tex]181=a[/tex]
[tex] \frac{905}{5}= \frac{5a}{5} [/tex] {solve further}
[tex]181=a[/tex]