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Posted by on Thursday, October 11, 2007 at 9:07pm.

Where do the following lines meet on a coordinate system? e.g. (x,y)

x+3y=4
2x-y+8

  • Algebra 2 - , Thursday, October 11, 2007 at 9:14pm

    you may have written the second equation down wrong. if it is 2x-y=8 then the answer is (4,0)

  • Algebra 2 - , Thursday, October 11, 2007 at 9:18pm

    thanks now how did you solve it
    what did you do?

  • Algebra 2 - , Thursday, October 11, 2007 at 9:25pm

    change x+3y=4 to x=-3y+4. substitute that into the second equation to get 2(-3y+4)-y=8, then solve

  • Algebra 2 - , Thursday, October 11, 2007 at 9:28pm

    thanks

  • Algebra 2 - , Thursday, October 11, 2007 at 9:30pm

    I have just found Jiskha but i will remember for the rest of my high school carreer

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