You can put this solution on YOUR website! solve the linear system using elimination
1/4x-2/3y=7
1/2x+2/3y=-4
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Add the two equations to get:
(3/4)x = 3
x = 4
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Substitute to solve for Y:
(1/2)*4 + (2/3)y = -4
(2/3)y = -6
y = -9
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Cheers,
Stan H.