Posted by Dawn on Friday, October 26, 2007 at 3:09pm.
The first set cannot be solved, the two lines represented in the equations are parallel, and have no solution.
The second set, the second equation tells us that x= 3y+7, put that in the first equation
5(3y+7)+6y=14
15y+6y=14-35 solve for y
21y=-21 21y/21=-21/21 y=-1
21y=-21 21y/21=-21/21 y=-1
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