ju3lia5rcamila ju3lia5rcamila

03-12-2016
Mathematics

contestada

Find the solution to the equations.

3x - y = -4
x + y = 0

(0, 0)
(-1, 1)
(1, -1)

Respuesta :

jimthompson5910 jimthompson5910

03-12-2016

Add up the equations to get

3x-y = -4
x+y = 0
------------
4x = -4

Since 4x = -4, this means x = -1 after we divide everything by 4. The only answer choice that has this is (-1,1) which is the final answer

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