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algebra 1

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Solve the following systems of linear equations using any algebraic method.If possible,check your solution.
1)2x+5y=3
X-3y=7
2) 3y=11-2x
3x=y-11
3)8x-6y=14
12x-9y=18

  • algebra 1 - ,

    #2:
    2x + 3y = 11
    3x - y = -11

    multiply #2 by 3 and add:

    2x+3y = 11
    9x - 3y = -33
    ---------------
    11x = -22
    x = -2
    now figure y: 5

    Do the others likewise. To check your answers, just plug in the values and make sure the equations still balance.

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