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anonymous

  • 5 years ago

y=2x=5 y=3x-3

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  1. anonymous
    • 5 years ago
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    hey valerie - did you mean 7=2x+5?

  2. anonymous
    • 5 years ago
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    err sorry, 7=2x+5

  3. anonymous
    • 5 years ago
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    (you wrote "=')

  4. anonymous
    • 5 years ago
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    if that's what you meant, then what you need to do is substitute the value of y from one equation into the other

  5. anonymous
    • 5 years ago
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    so let's take y=2x+5 , and substitute the value of y (2x+5) into the other equation (y=3x-3)

  6. anonymous
    • 5 years ago
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    so 1. 2x+5 = 3x - 3 2. 2x + 8 = 3x 3. x = 8

  7. anonymous
    • 5 years ago
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    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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