Teacher2Teacher 
Q&A #9409 
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From: jackie <jackie@snobby.com> To: Teacher2Teacher Public Discussion Date: 2002120115:34:50 Subject: thank you for your question 4x  9 = 7x + 12 and this one: 8m + 13 = 13 + 8m I can solve both question for you a) 4x  9 = 7x + 12 4x  7x = 9 + 12  3x = 21 x = 21/3 x = 7 x =7 therefor the answer is x=7 b) 8m + 13 = 13 + 8m 8m  8m = 13  13 0 = 0 therefore the answer is 0 = 0
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