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OpenStudy (anonymous):
Solve the system algebraically. Find the number of solutions for the system. 4x-y=-4 12x-3y=-24 a. No solution b. One solution c. Infinite number of solution d. None of these
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OpenStudy (zepp):
You can always use the reduction method to solve it.
OpenStudy (zepp):
\((4x-y=-4)3 \\12x-3y=-12\)
OpenStudy (zepp):
Then simply substract them 12x-3y=-24 -12x-3y=-12 ------------- 0=-24--12 0=-24+12 0=-12 And since \(0 \ne -12\), this system has no solution.
OpenStudy (precal):
|dw:1341888115615:dw| notice the slope is 4
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