Answer:
i think this is right i hope it helped :)
Explanation:
5m - 8 = 2m + 1
5m + 2m - 8 = 1
7m - 8 = 1
7m = 7
m = 1
m = 3
5m - 2m = 1 + 8 { like terms }
3m = 9 { crossing over }
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