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    I'm having some trouble solving these simultaneous equations:

    2x-y=6
    4x+3y=22

    Could someone please try and help me solve them by elimination as when I work it out I get a completely different answer to what is in the back of the book. Thank you
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    (Original post by sm_551)
    I'm having some trouble solving these simultaneous equations:

    2x-y=6
    4x+3y=22

    Could someone please try and help me solve them by elimination as when I work it out I get a completely different answer to what is in the back of the book. Thank you
    What have you tried??
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    2x-y=6 can be rearranged to y=2x-6
    So if you know what y is equal to, you can substitute it into the second equation so you get:
    4x+3(2x-6)=22
    Expand out the bracket and rearrange to solve for x. Once you know the value for x, you can substitute it back into any of the equations to find y
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    You're welcome
 
 
 
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