Answer:
[tex]a = - 1[/tex]
Step-by-step explanation:
[tex]5 - 3(a + 6) = a - 1 + 8a[/tex]
[tex]5 - 3a - 18 = a - 1 + 8a[/tex]
rearrange like terms
[tex]5 - 17 = 12a[/tex]
divide by coefficient of a
