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OpenStudy (anonymous):
please help me get started with using elimination method for -7x-y = -30 4x + y = 21
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OpenStudy (anonymous):
when u add both the equatins y will be eliminated and u will get only x.
OpenStudy (anonymous):
ok I got the 'x' value and then I solved for 'y' but it doesnt check
OpenStudy (anonymous):
-3x=-9 x=3 12+y=21 y=9 Nw check
OpenStudy (anonymous):
ohhh ok :)
OpenStudy (anonymous):
now it checks...minor error on my behalf :) tytytyty
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OpenStudy (anonymous):
yw
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