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anonymous

  • 4 years ago

How many solutions does this system of equations have? 2x-2y=8 2x+3y=3

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  1. Mertsj
    • 4 years ago
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    Well, the slopes are not the same so they are not parallel.

  2. Mertsj
    • 4 years ago
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    The equations are not the same equation so they are not the same line. Therefore they intersect and have one solution.

  3. anonymous
    • 4 years ago
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    okay. I got that. How do i solve it though???

  4. anonymous
    • 4 years ago
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    they are linear so they cross once, one solution

  5. anonymous
    • 4 years ago
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    ..I see.

  6. anonymous
    • 4 years ago
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    substitution method get a variable by itself on one side of one equation then plug the left side in for that variable in the other

  7. Mertsj
    • 4 years ago
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    Good for you.

  8. anonymous
    • 4 years ago
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    equation

  9. mathmate
    • 4 years ago
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    Hint: subtract one equation from the other and you get y=-1 right away.

  10. Mertsj
    • 4 years ago
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    You are not asked to solve it--only tell how many solutions it has. You can do that by examining the equations without solving.

  11. anonymous
    • 4 years ago
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    okay. thanks for the help!

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