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OpenStudy (anonymous):
solve using substitution, show work -4x + y = 6 -5x - y = 21
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OpenStudy (anonymous):
find x in terms of y in 1st eqn. ,substitute in the 2nd eqn. and u get the value of y...equate that and u get the value of x
OpenStudy (anonymous):
example?
OpenStudy (shaik0124):
|dw:1358532187958:dw|
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