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dusty

  • one year ago

What is the value of the y variable in the solution to the following system of equations? 5x + 3y = 7 3x - 5y = -23 A.) -1 B.) 1 C.) -4 D.) 4

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  1. yiersan
    • one year ago
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    ans:4

  2. dusty
    • one year ago
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    could u explain it please?

  3. jedai17
    • one year ago
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    use the elimination method..

  4. yiersan
    • one year ago
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    \[x=(7-3y)/5\]

  5. yiersan
    • one year ago
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    and sub it to the second equation

  6. dusty
    • one year ago
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    thank you :)

  7. jedai17
    • one year ago
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    @dusty did you get it?

  8. yiersan
    • one year ago
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    if you are unsure if the ans is correct. u can sub back the value x and y you have found into the two equation given.

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