Solve the system using an equivalent system.
(4, –2)
(–2, 4)
(2, –4)
(–4, 2)
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OpenStudy (anonymous):
OpenStudy (anonymous):
@android
OpenStudy (anonymous):
Use Elimination method..
OpenStudy (anonymous):
1st Subtract Both the Equation to eliminate y
OpenStudy (anonymous):
-2x - y = 0
3x - y = 10
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OpenStudy (anonymous):
@Yahoo! so wat do i do? subtract wat
OpenStudy (anonymous):
-2x - y = 0
-
3x - y = 10
OpenStudy (anonymous):
-5 y = -10
OpenStudy (anonymous):
-5 - y = -10??
OpenStudy (anonymous):
Lol
-5x +0 = -10
x = 2
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OpenStudy (anonymous):
Nw find y
OpenStudy (anonymous):
lol ok so how do I find why I am so confussed lol
OpenStudy (anonymous):
its -4 cuz the multiple choice answers there is only one positive 2 :p
OpenStudy (anonymous):
The equivalent system created first is
-2x -y = 0
-3x +y = 10
by multiplying the second equation by -1
Another equivalent system is created by adding those two equations together.
'Equivalent' simply means that it looks different, but means the same thing (has the same solutions).
OpenStudy (anonymous):
So could you give me the answer please please?
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