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OpenStudy (anonymous):
How many solutions are there to the following system of equations? -2x + 2y = 8 9x - 9y = 36
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OpenStudy (anonymous):
y-x=4........(1) x-y=4.......(2) (1)+(2) 0=4 which is not possible......so no solution
OpenStudy (anonymous):
or you can draw line......we see that they are parallel line.....so .....it has no solution
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