A.2a+6 B.2a+7 C.2a+8 D.2a+9 tolong dijawab dengan caranya

A. 2a+6=2+6=8a
B. 2a+7=2+7=9a
C. 2a+8=2+8=10a
D. 2a+9=2+9=11a
maaf kalo salah

[tex]27 \: . \: {9}^{a + 3} = {3}^{a} \\ {3}^{3} \: . \: {3}^{2(a + 3)} = {3}^{a} \\ {3}^{3} \: . \: {3}^{2a + 6} = {3}^{a} \\ {3}^{2a + 6 + 3} = {3}^{a} \\ {3}^{2a + 9} = {3}^{a} \\ 2a + 9 = a \\ 3a = - 9 \\ a = \frac{ - 9}{3} \\ a = - 3 \\ \\ semoga \: membantu[/tex]