Answer:
a = - 27
Step-by-step explanation:
- [tex]\frac{2}{3}[/tex] a - 6 = 12 ( add 6 to both sides )
- [tex]\frac{2}{3}[/tex] a = 18 ( multiply both sides by 3 to clear the fraction )
- 2a = 54 ( divide both sides by - 2 )
