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anonymous

  • one year ago

Solve the system of equations and choose the correct answer from the list of options. d + e = 15 −d + e = −5 Label the ordered pair as (d, e). (0, 0) (10, −5) (5, 10) (10, 5)

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  1. carolinar7
    • one year ago
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    ok do you know what a system of equations is

  2. anonymous
    • one year ago
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    no

  3. carolinar7
    • one year ago
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    A system of equations is a collection of two or more equations with a same set of unknowns. In solving a system of equations, we try to find values for each of the unknowns that will satisfy every equation in the system. The equations in the system can be linear or non-linear.

  4. carolinar7
    • one year ago
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    Now that you know this would you rather solve it by elimination or substitution

  5. anonymous
    • one year ago
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    @Michele_Laino

  6. Michele_Laino
    • one year ago
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    I solve the second equation with respect to e, and I find: \[\Large e = d - 5\]

  7. carolinar7
    • one year ago
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    Now substitue that into the other equation

  8. Michele_Laino
    • one year ago
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    what do you get? @lil_chukie

  9. carolinar7
    • one year ago
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    d+(d-5)=15

  10. Michele_Laino
    • one year ago
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    please continue @lil_chukie

  11. anonymous
    • one year ago
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    idk how to do this

  12. anonymous
    • one year ago
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    @Michele_Laino whats the answer

  13. Michele_Laino
    • one year ago
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    we have: 2d-5=15 then 2d=20 and d=20/2=...?

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