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OpenStudy (anonymous):
What is the solution of the system? Use elimination. 3x – 4y = 9 –3x + 2y = 9
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OpenStudy (anonymous):
y=-9/2 => x= -9/3 = -3
OpenStudy (radar):
Are these two equations? 3x-4y=9 -3x + 2y = 9
OpenStudy (anonymous):
A. (3, 9) B. (–27, –9) C. (–3, –6) D. (–9, –9)
OpenStudy (radar):
IF so, I will add them to eliminate the x -2y=18 y=-9 Can you take it from there and solve for x?
OpenStudy (radar):
No dialog..........substitute the -9 for y in the 3x-4y=9 3x+36=9 3x=9-36=-27 x=-9 (-9,-9) Did you follow with understanding?
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