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OpenStudy (anonymous):
Another confusing problem.. 7x + 2y = 10 -7x + y = -16
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hartnn (hartnn):
Add the 2 equations, what u get ?
OpenStudy (anonymous):
Solving Systems by Elimination.
OpenStudy (anonymous):
Yeah..it's confusing. :/
hartnn (hartnn):
Add the 2 equations, can you ?
OpenStudy (anonymous):
just add downwards.
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OpenStudy (anonymous):
x + 3y = -6? o.o
hartnn (hartnn):
ok, lets add 'x' terms 7x + (-7)x = (7-7)x =... ?
OpenStudy (anonymous):
0x..so x = 0?..
hartnn (hartnn):
no, its just 0x
OpenStudy (anonymous):
So... just "x".
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OpenStudy (raden_zaikaria):
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