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    4. 4x-y=11 y=2x-5
    4x-y=11 y=2x-5

    please explain


     

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    0  Views: 530 Answers: 2 Posted: 12 years ago
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      2 Answers

      4x-y=11 y=2x-5


      4x - 2x -5 = 11  > Put 2x - 5 in place of y


      4x - 2x = 2x


      2x - 5 = 11


      The opposite of subtraction is addition.  Add 5 on both sides.


      2x - 5 = 11


           +5    +5


      --------------------


      2x = 16


      The opposite of multiplication is division. Divide by 2.


      Answer:  x = 8

      12 years ago. Rating: 3
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        Replace y with ( 2x -5) in 4x - y = 11 


        4x - (2x-5) = 11


        4x  - 2x + 5 =11


        2x = 11 - 5


        2x = 6


        x = 6/2 = 3


        replace the x in y = 2x - 5


        y = 2 times 3 - 5


        y = 6 - 5 = 1


        x=3  y=1

        12 years ago. Rating: 1
        Comment this answer



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