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ihavemathquestions

  • 3 years ago

Solve the system by using a table.

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  1. ihavemathquestions
    • 3 years ago
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  2. ihavemathquestions
    • 3 years ago
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    @satellite73

  3. anonymous
    • 3 years ago
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    you want to solve it, or check the solutions?

  4. anonymous
    • 3 years ago
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    we can rewrite the second equation \[-4x-4y=28\] by dividing by \(-4\) and get \[x+y=-7\] or \(y=-x-7\) then use that to solve in the first equation

  5. anonymous
    • 3 years ago
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    \[3y=4x+7\] \[3(-x-7)=4x+7\] \[-3x-21=4x+7\] \[-28=7x\] \[x=-4\] so now we have \(x=-4\) i guess we are done since you only have one option

  6. anonymous
    • 3 years ago
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    must be \((-4,-3)\)

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