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OpenStudy (anonymous):
2. What is the solution of the system? 7x + 5y = 19 –7x – 2y = –16 (1 point) (2, 1) (1, 2) (7, 5) (–7, –2)
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OpenStudy (natalieee):
just plug it in where the x and y's are to get your answer.
OpenStudy (natalieee):
2,1
OpenStudy (natalieee):
medal me
OpenStudy (anonymous):
thx
OpenStudy (natalieee):
your welcome (:
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OpenStudy (anonymous):
addition/elimination method 7x + 5y = 19 - 7x - 2y = - 16 ----------------add 3y = 3 y = 1 Now substitute 1 in for y in either of the two equations... 7x + 5y = 19 7x + 5(1) = 19 7x + 5 = 19 7x = 19 - 5 7x = 14 x = 2 The answer is (2,1)
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