anonymous
  • anonymous
y=2x=5 y=3x-3
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
hey valerie - did you mean 7=2x+5?
anonymous
  • anonymous
err sorry, 7=2x+5
anonymous
  • anonymous
(you wrote "=')

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anonymous
  • anonymous
if that's what you meant, then what you need to do is substitute the value of y from one equation into the other
anonymous
  • anonymous
so let's take y=2x+5 , and substitute the value of y (2x+5) into the other equation (y=3x-3)
anonymous
  • anonymous
so 1. 2x+5 = 3x - 3 2. 2x + 8 = 3x 3. x = 8
anonymous
  • anonymous
now I'll leave it for you to ask more questions, or substitute x=8 back into either equation to get the value of y

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