Teacher2Teacher 
Q&A #9409 
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From: Frank <frankbirgit@mail.dk> To: Teacher2Teacher Public Discussion Date: 2003110710:55:31 Subject: Re: thank you for your question Just to avoid any misunderstandings. Jackie wrote: "8m + 13 = 13 + 8m 8m  8m = 13  13 0 = 0 therefore the answer is 0 = 0" 0=0 is not the answer to the equation. Since you have simplyfied the equation 8m+13=13 + 8m into 0 =0 which is true no matter the value of m the solutions to the equation is all numbers. That is any real number would be a solution. Ex. Lets try with 100: substituting x with 100 gives: 800+13=13+800 which is true so 100 is a solution!
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