Question

-2.9a+6.8 and 4.4a-7.3?

Answer 1

Will if your trying to simplify each side then it is all ready but if your trying to combine each one then here is how to
-2.9a+6.8=4.4a-7.3
+2.9a         +2.9a
6.8=7.3a-7.3
+7.3       +7.3
14.1=7.3a
dvide each side by 7.3
1.93=a