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10-09-2014
Mathematics

contestada

Solve each system of equations by using substitution

2x+y=4
3x+2y=1

Respuesta :

10-09-2014

y = 4 - 2x
=> 3x + 2(4 - 2x) = 1 => -x + 8 = 1 => x = 7
=> y = 4 - 14 = -10
(7,-10)

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