02-01-2017
Mathematics

contestada

What is the solution to the system of equations below?
3x+4y= -2
2x-4y= -8
A:x=2,y=-2
B:x=6,y=-5
C:x=4,y=4
D:x=-2,y=1
D:

Respuesta :

xEngineerOrg xEngineerOrg

02-01-2017

If you add the two equations together, you'll get:
[tex]5x=-10[/tex], which gives x = -2.

Replace x = -2 in any of the two equations and you'll get y = 1.

So correct answer is D: x=-2,y=1

Answer Link

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