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OpenStudy (anonymous):
Solve by the substition method 7x+3y=50 -6x+y=50
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OpenStudy (saifoo.khan):
-4, 26
OpenStudy (cathyangs):
y=6x+50 7x+3(6x+50)=50 7x+18x+150=50 25x=-100 x=-4 7(-4)+3y=50 -28+3y=50 3y=78 y=26
OpenStudy (anonymous):
8,2
OpenStudy (saifoo.khan):
impossible.
OpenStudy (anonymous):
Why is that?
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OpenStudy (saifoo.khan):
7x+3y=50 7(-4) + 3(26) = 50 Proved.
OpenStudy (saifoo.khan):
You must have changed the question or something by mistake.
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