algebra

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Solve by the subsitution method.
2x+4y=-6
-3x+y=23
y=23+3x
2x +4(23+3x)=-6
2x +92 +12 x =-6
x=7
y= 23 I am lost after this could some one help me

  • algebra -

    check your arithmetic from
    2x +92 +12 x =-6 to
    x = 7
    should have been x = -7
    then y = 23-21 = 2

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