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anonymous

  • one year ago

Medal Solve each system of equations by addition-subtraction, or by substitution. 3x + 2y = -4 -3x+y =7

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  1. Vocaloid
    • one year ago
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    hint: start by adding the two equations together

  2. anonymous
    • one year ago
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    -6x + 3y=3

  3. LynFran
    • one year ago
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    by adding the 2 equations note x will be eliminated

  4. LynFran
    • one year ago
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    3+(-3)=0

  5. anonymous
    • one year ago
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    so its 3y= 3

  6. anonymous
    • one year ago
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    y=1

  7. LynFran
    • one year ago
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    yes

  8. LynFran
    • one year ago
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    now sub y=1 into any of the above equations to find the value of x

  9. anonymous
    • one year ago
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    u get 3x + 2 = -4

  10. LynFran
    • one year ago
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    yea now take 2 frm both sides of the equation

  11. anonymous
    • one year ago
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    x= -2

  12. LynFran
    • one year ago
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    correct

  13. anonymous
    • one year ago
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    thank you so much

  14. LynFran
    • one year ago
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    welcome

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