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Math Help - Solving simultaneous equations

  1. #1
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    Solving simultaneous equations

    Solving simultaneous equations

    Hello

    How do you solve the following simultaneous equations? (can you please show me the steps on how to solve the following equations)

    2y + x = 10 and x= 3 + 5y

    Thank you
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  2. #2
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    May 2009
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    Rearrange the first equation to get x=10-2y and now substitute that into the second equation for x to yield

    10-2y=3+5y now you have an equation of one variable which you should be able to solve

    Once you get your answer for y, plug the value of y into either of the equations and solve for x
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  3. #3
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    Rezolve

    Quote Originally Posted by atom360 View Post
    Solving simultaneous equations

    Hello

    How do you solve the following simultaneous equations? (can you please show me the steps on how to solve the following equations)

    2y + x = 10 and x= 3 + 5y

    Thank you
    2y+3+5y=10
    7y=7
    y=1

    x=3+5x1
    x=8

    Very easy

    www.mateinfo.ro
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