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minnie123

  • 2 years ago

Help Please!!!! I'll Fan and give medal!!! Find the common solution for 2x + 7y = -38 and -5x - 8y = 38 X=? Y=?

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  1. texaschic101
    • 2 years ago
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    use the addition/elimination method...

  2. Saikam
    • 2 years ago
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    2x+7y = -38 -5x-8y=38 the thing is to make the coefficient of one of the variables equal and then eliminate it. multiplying the first equation by 5, 10x+35y = -190 second equation by 2, -10x-16y=76 adding them eliminates the x-variable 35y - 16y = -190 + 76 Therefore, 19y = -114 find y from here, then substitute in any one of the originally given equations and get the values of x.

  3. minnie123
    • 2 years ago
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    y=-6 andx=2

  4. Saikam
    • 2 years ago
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    VERY GOOD :)

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