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solve by substituting?-2x+6y=6-7x+8y=-5
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Kikito001

by Kikito001 at November 27, 2009

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-2x = 6-6y  using the first equation -2x/-2 = 2(3-3y)/-2 x = 3y-3  *** plot this for x in the second equation -7(3y-3)+8y = -5 -21y+21+8y = -5 -13y/-13 = -26/-13 y = 2  
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The_Engineer The_Engineer November 27, 2009

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explain to me how to do this and i will figure it out....
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Amber_Malaine Amber_Malaine November 27, 2009

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