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chipendaele
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slope is m= -1-5/5+1 The y intercept or b is the other thing you need to know. (0,?) y=mx+b you could use the point slope y-y1=m (x-x1)
The cleanest way to do this would be to multiply one by 3 and 2 all the way, respectively. 15x+6y=39 and 14x-6y=34. With the y's dropping out because 6 and -6 are opposite pairs adding to zero, adding gets one 29x=73. Divide each side by 29 to get what x