Posted by Dawn on Friday, October 26, 2007 at 3:09pm.
Please help me solve:
yx=5
2x2y=10
&
5X+6y=14
3y+x=7

Substitution Method  bobpursley, Friday, October 26, 2007 at 3:18pm
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=1435 solve for y

Substitution Method  loren, Saturday, July 10, 2010 at 9:17am
21y=21 21y/21=21/21 y=1
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