SOLUTION: how do we solve this? 12m - 25 = 4m + 7

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Question 75625: how do we solve this?
12m - 25 = 4m + 7
Answer by jim_thompson5910(35256) About Me  (Show Source):
You can put this solution on YOUR website!
12m+-+25+=+4m+%2B+7
12m+-+25-4m+=+cross%284m+-4m%29+%2B+7 Subtract 4m from both sides
12m+%2B+cross%28-+25+%2B+25%29+-+4m+=7%2B25 Add 25 to both sides
12m-4m=7%2B25 Now add like terms
8m=32
cross%288%2F8%29m=32%2F8 Divide both sides by 8
m=4
Basically what I just did was isolate m so I can see that it is equal to some number


Check:
12m+-+25+=+4m+%2B+7
12%284%29+-+25+=+4%284%29+%2B+7 Plug in m=4
48+-+25+=+16+%2B+7
23+=+23 works