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anonymous

  • 5 years ago

and i also need help to solve this one the last one please help!!! solve by addition method 3x-2y=12 5x+2y=4

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  1. anonymous
    • 5 years ago
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    add first eq and second: 8x+ 0 =16 solve for x (divide both sides by 8): x=2 substitute value of x in any given eq ( let say first one): 3*2-2y=12 subtract 6 to both sides of equation: -2y=6 divide both sides by (-2): y=-3 you solution: x=2, y=-3

  2. anonymous
    • 5 years ago
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    thank you angel

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