anonymous
  • anonymous
http://i.imgur.com/1h6HYZB.png how do i solve this? i have an exam coming up and i really need to know, thanks!
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
oh thats cool! thanks anyway. i would ask for the answer but this isnt the real exam so it wouldnt help too much! thanks anyway however
amistre64
  • amistre64
how do we get rid of a denominator?
amistre64
  • amistre64
equations are valid when we do the same operation to both sides, this allows us to change form, but retain equality. so multiplying each side by the same thing, allows us to change the LOOK of it, but retain the equality of it.

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amistre64
  • amistre64
when ever we have a denominator, its best to clear it out .. a/b = k , multiply both sides by b (why?) a b/b = kb , b/b = 1 if b isnt 0 a = kb , this tends to be simpler form for us to work with.

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