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-   -   Solve 7x+8y=6, 3x-4y=10 (https://www.askmehelpdesk.com/showthread.php?t=586131)

  • Jul 7, 2011, 10:29 AM
    maryroy
    solve 7x+8y=6, 3x-4y=10
    solve 7x+8y=6, 3x-4y=10
  • Jul 7, 2011, 10:45 AM
    deem_p
    Just sum up the first equation woth the double of the second equation ==>> 7x+6x+8y+(-8y)=6+20
    13x = 26 , x = 2
    then substitute 2 for x in eny of the two equations and find y (-1)


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