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OpenStudy (anonymous):
5m + .7n = 6.4 .2m - .7n = .6
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OpenStudy (anonymous):
add the two equations
OpenStudy (anonymous):
u get 7m=12.4
OpenStudy (austinl):
No, 5.2m.
OpenStudy (austinl):
5.2m=7
OpenStudy (anonymous):
now substitute m=7/5.2 in any eqa u will n
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OpenStudy (anonymous):
2.2
OpenStudy (anonymous):
Is it .2 means 2/10?????
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