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OpenStudy (anonymous):
solve by substitution; 2x+2y=14 y=3x-9 please/thanks:)
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OpenStudy (anonymous):
easy again bro. just substitute y=3x-9 into 2x+2y=14 to get 2x + 2(3x-9)=14 then you get 2x + 6x -18=14. then you get 8x=32, which means x=4. then just put x=4 into y=3x-9 to get y=3.
OpenStudy (anonymous):
THANKS! i get it now, i was absent from school and missed the lesson/:
OpenStudy (anonymous):
no prob man!
OpenStudy (anonymous):
Wait, but what about this one; -7x=2y=0 x-6y=0
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