7 m + (4 m+ 3)-(6 m+ 9) =

Question

7 m + (4 m+ 3)-(6 m+ 9) =

Answer 1

7m+4m+3-6m-9=5m-6
..........................

Answer 2

7m + 4m + 3 - 6 m - 9 = 5 m - 6