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Southerngirl265

  • one year ago

find the solution of the system. Use substitution. 2x – y = –7 4x – y = –4

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  1. Roynsky
    • one year ago
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    Same as the last one. Find the two terms in each equation you can add together canceling out the term. For example if you add both equations tell me what you would end up with?

  2. Southerngirl265
    • one year ago
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    what do you mean?

  3. Roynsky
    • one year ago
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    Okay hand on I'll try to draw it out for you so you understand what I'm doing:

  4. Roynsky
    • one year ago
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    |dw:1359180003805:dw|

  5. Roynsky
    • one year ago
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    Now solve for "x". Then sub in "x" value into an equation to find the "y" value

  6. shaik0124
    • one year ago
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    x=3/2

  7. shaik0124
    • one year ago
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    |dw:1359180519486:dw|

  8. shaik0124
    • one year ago
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    y=10

  9. shaik0124
    • one year ago
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    hope u understand

  10. Southerngirl265
    • one year ago
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    so x is 1.5

  11. Southerngirl265
    • one year ago
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    in decimal form

  12. Roynsky
    • one year ago
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    Pretty much.

  13. shaik0124
    • one year ago
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    ya x=1-5@south

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