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OpenStudy (anonymous):
Tell whether the system has one solution, infinitely solution, or no solution. -x + y= -13 3x - y =19
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OpenStudy (anonymous):
Notice that the y coefficiants cancel out very neatly =D So add the two equations like so: -x + y = -13 + 3x - y = 19 -------------- 2x = 6 now solve that for x. Plug in for x in either of the starting equations to solve for y. You get one answer.
OpenStudy (anonymous):
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