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sammy5592

  • 3 years ago

Part 1: Solve the following system of equations. Please show your work to receive full credit. x - y = 10 2x + y = 2 Part 2: Explain which method you chose to solve the system and why you felt it was the best choice.

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  1. hartnn
    • 3 years ago
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    Add those two equations first and tell me what u get?

  2. Mellissa
    • 3 years ago
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    combine like terms first

  3. sammy5592
    • 3 years ago
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    3x+y=12

  4. Mellissa
    • 3 years ago
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    is that Part 2 part of the equation ?@Sammy5592

  5. sammy5592
    • 3 years ago
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    no @Mellissa

  6. shaik0124
    • 3 years ago
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    |dw:1346076054334:dw|

  7. Mellissa
    • 3 years ago
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    ok @Sammy

  8. shaik0124
    • 3 years ago
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    -3y=18 y=-6 x-(-6)=10 x+6=10 x=10-6 x=4

  9. shaik0124
    • 3 years ago
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    therefore x=4,y=-6 is answer

  10. sammy5592
    • 3 years ago
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    can u write the firsrt 1 out like that

  11. hartnn
    • 3 years ago
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    @sammy5592 how did u get 3x+y=12 u should get 3x=12 check again.

  12. shaik0124
    • 3 years ago
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    i multiplied first equation by 2 then subtracted from 2nd equation ..this gives y .put y value in any one of the equations u will get x,theefore x,y u got is solution

  13. sammy5592
    • 3 years ago
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    no i mean how you did the second equation

  14. shaik0124
    • 3 years ago
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    did u got @sammy5592

  15. sammy5592
    • 3 years ago
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    ???

  16. shaik0124
    • 3 years ago
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    did u understand the solution i replied for above problem

  17. sammy5592
    • 3 years ago
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    yes

  18. sammy5592
    • 3 years ago
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    part 2 ???

  19. shaik0124
    • 3 years ago
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    it is substitution method

  20. shaik0124
    • 3 years ago
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    it is best bcoz if u find 1 value then automatically it is easy to find another value

  21. sammy5592
    • 3 years ago
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    Thanks :)

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