smartalways smartalways

20-12-2016
Mathematics

contestada

Which ordered pair is the solution to the system of equations?
{2x−y=15
{4x+3y=−5

A.(-5,-25)
B.(4,-7)
C.(-1,3)
D.(3,-12)

Respuesta :

mustafa125 mustafa125

20-12-2016

by multiplaying the first equation by -2 then adding the result to the second equation ....
. 5y =-35 so y=-7

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