anonymous
  • anonymous
i thinkof a no & add 12 then i start again with the no double it & subtract 8 .the two results are same. can someone help
Mathematics
chestercat
  • chestercat
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anonymous
  • anonymous
add eight over and subtract x \[4=x\]
ParthKohli
  • ParthKohli
Another way:\[x - 4 = 2(x - 4)\]So obviously, \(x - 4 = 0\).
shubhamsrg
  • shubhamsrg
Or, x= +inf or -inf! ;)

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ParthKohli
  • ParthKohli
I hope any one of you didn't think of dividing both sides by \(x - 4\), or you could have been jailed . . .
ParthKohli
  • ParthKohli
Oh, new question?\[x + 12 = 2x - 8\]
anonymous
  • anonymous
thanks A lot to help me but please can u tell me how to solve it step by step i ll highly apperciate thanx & regards in advance
anonymous
  • anonymous
So you want to isolate x. First step is to get like terms on the same side with each other. SO add 8 over and subtract so you get \[4=x\] in this case. It won't always isolate quite so easily there may be division/multiplication involved but the process involved is always the same. Combine like terms and then isolate x
anonymous
  • anonymous
thanks & regards

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