amp92904 amp92904
  • 01-03-2019
  • Mathematics
contestada

Help me please
I don't know how to do this ​

Help me pleaseI dont know how to do this class=

Respuesta :

XuHuang016
XuHuang016 XuHuang016
  • 01-03-2019
I don’t either
Can someone please teach me
Answer Link
helloitschump0vfdz
helloitschump0vfdz helloitschump0vfdz
  • 01-03-2019
X = 1, Y = -1


You could do substitution :
x - y = 2
x = 2 + y
———————-
5(2 + y) + y = 4
10 + 5y + y = 4
10 + 6y = 4
6y = -6
y = -1
———————-
x - (-1) = 2
x + 1 = 2
x = 1
——————————
CHECK ANSWER :
5(1) + (-1) = 4
1 - (-1) = 2
Answer Link

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