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Math

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a+s=1970
8a+5s=12220
Please help me solve the system of equation and show your work thanks

  • Math -

    8a+5s=12220
    a+s=1970
    Solve by elimination (of s)
    Multiply the second equation by 5 and subtract from the first:
    8a-5a + 5s-5s = 12220-5*1970
    3a = 2370
    a=790
    Solve for s using a=790

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