Answers

2016-01-20T10:42:55+08:00
Transpose 6m to the left and -8 to the right.
7m - 6m= -2 + 8
m = 6
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2016-01-20T19:07:34+08:00
Transposition 

7m - 8 = 6m - 2
7m - 6m = -2 + 8
m = 6

Substitue to check
7 (6) - 8 = 6 (6) - 2
42 - 8 = 36 - 2 
34 = 34
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