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Wildcatgirl98

  • 3 years ago

i need help solving this question with substitution: 2.5x+y=-2 3x+2y=0

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  1. Wildcatgirl98
    • 3 years ago
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    can you help me?

  2. BurrDaBoss
    • 3 years ago
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    yeah , i think

  3. Wildcatgirl98
    • 3 years ago
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    can you walk me through it

  4. BurrDaBoss
    • 3 years ago
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    I cant really remember the steps , i learned it awhile ago...

  5. Wildcatgirl98
    • 3 years ago
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    well this is how i learned it for instance on this problem 5x-2y=14 2x-y=5 5x-2(2x-5)=14 -2x -2x 5x-4x+10=14 -y=-2x+5 x+10=14 --- --- --- -10 -10 -1 -1 -1 x=4 y=2x-5 2(4)-y=5 8-y=5 -8 -8 -y=-3 -- -- -1 -1 y=3 ANSWER: (4,3) but i keep getting a wacky answer.

  6. BurrDaBoss
    • 3 years ago
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    that seems right to me .... ;/

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