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OpenStudy (anonymous):
Which value of x satisfies both -9x + 4y = 8 and -3x − y = 4?
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OpenStudy (anonymous):
A. -1/7 B. -7/9 C. -8/7 D. -9 E. -4/3
OpenStudy (anonymous):
solve the two equations together by addition first multiple the 2nd eq. by 4 and then add the eqs
OpenStudy (anonymous):
im stuck
OpenStudy (anonymous):
\[-9x+4y=8\] \[-12x-4y=16\]
OpenStudy (anonymous):
by addition -21x=24 x=-24/21=-8/7
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