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OpenStudy (anonymous):
Solve the following system of equations by linear combination: 2d – e = 7 d + e = 5 A. The solution is (3, –1). B. There is no solution. C. The solution is (4, 1). D. There are an infinite number of solutions.
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OpenStudy (anonymous):
b
OpenStudy (anonymous):
3d = 12 d = 4
OpenStudy (anonymous):
was i wrong
OpenStudy (anonymous):
plugging 4 in for d, e =1
OpenStudy (anonymous):
|dw:1387394078815:dw|
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