Answer:
[tex]a = - 3[/tex]
Step-by-step explanation:
[tex] - 10 = 2a - 4 \\ 2a - 4 = - 10 \\ 2a = 4 - 10 \\ 2a = - 6 \\ a = - \frac{6}{2} \\ a = - 3[/tex]
a = -3
- 10 = 2a - 4
- 10 + 4 = 2a
- 6 = 2a
- 6/2 = a
- 3 = a
