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K.Binks

  • one year ago

Solve 4x + 3y = 13 by the substitution method. x + y = 4 I understand how to substitute, but I'm unsure of the negatives in this one

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  1. rishavraj
    • one year ago
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    x + y = 4 x = 4 - y so now plug the value of "x" in 1st equation

  2. K.Binks
    • one year ago
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    For some reason I did -y=x-4. Careless mistake, thank you again

  3. rishavraj
    • one year ago
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    u should hav written tht y = 4 - x

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