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Algebra

posted by on .

How do I solve the following by substitution:
5x -2y =-5
y - 5x = 3

8x - 4y = 16
y = 2x - 4

4x -12y =5
-x + 3y = -1

  • Algebra - ,

    5x -2y =-5
    y - 5x = 3

    5x -2y =-5
    -5x +y = 3

    5x -2y =-5
    10x -2y =-6

    15x =-1

    x= -1/15

    (-1/15x5) -2y =-5

    -1/3 -2y=-5
    +1/3 +1/3

    -2y= 4 2/3
    /-2 /-2

    y= -2 1/3





    x= -1/15
    y= -2 1/3

  • Algebra - ,

    Thank you for your help!

  • Algebra - ,

    lol np bro

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