2/9(1,8-3/2а)-7/6(1,2-4/7а)=2

Question

2/9(1,8-3/2а)-7/6(1,2-4/7а)=2

Answer 1

2/9*18/10 - 2/9*3/2а - 7/6*12/10 +7/6*4/7а=2
2/5 - 1/3а - 7/5 + 2/3а=2
-5/5 - 1/3а=2
-1/3а=2+1
-1/3а=3
а=-3/3
а=-1