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OpenStudy (destinymasha):
Solve the following system of equations. 6x - 5y = - 12 - 3x + 2y = 9 A. (7, 6) B. (6, 7) C. (- 6, - 7) D. (- 7, - 6)
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OpenStudy (anonymous):
Fastest way: 6x - 5y = - 12 (1) -3x + 2y = 9 (2) Multipli the ecuation (2) by 2, you'll get -6x + 4y = 18 (3) Add ecuations 1 and 3 to cancel x 0x -y = 6 Then y=-6 Then substitute y by -6 in any equation and solve for x.
OpenStudy (destinymasha):
k
OpenStudy (destinymasha):
x = -7 ?
OpenStudy (anonymous):
Right!, good work.
OpenStudy (destinymasha):
yay thanks
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