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March 29, 2017

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Solve by substitution method. Show step by step process.
4x+5y=27
x=26-4y

  • Math need by 9pm cst - ,

    You need to show some work. I think you are answer grazing.

  • Math need by 9pm cst - ,

    4x+5y=27
    x=26-4y

    4(26-4y) + 5y = 27
    104 - 16y+ 5y = 27
    -21y = - 77
    21y = 77
    y = 77/31

    Now, I’m suppose to return to the 2nd equation x=26-4y and substitute 77/31 for x, I don’t understand if the is correct way or how to get the answer for the ordered pair.

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