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algebra

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I need help with these problem someone told me that you was not helping them.
Please help me!!
5/4x +1/8x=11/8 +x
The solution is x=
Solve by the elimination method.
4x +5y=5
8x +10y=10
What is the solution of the system.

  • algebra -

    for the first, multiply each term by 8,
    easy after that.

    for the second, there is an infinite number of solutions.
    Notice if you double the first equation, you get exactly the second equation.
    So really you are just given the same equation twice.
    So, any x and y which satisfies the equation is a solution,
    e.g.
    x = 0, y = 1
    x

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