SOLUTION: x=-3/2y +7 & x=4y - 6

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Question 878379: x=-3/2y +7 & x=4y - 6
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
x=-3/2y +7 & x=4y - 6
convert to a matrix
x=-3/2y +7
x+3/2y=7
1,3/2,7
x=4y - 6
x-4y=-6


1,-4,-6
1,3/2,7
add down (-1/1) *row 1 to row 2
1,-4,-6
0,11/2,13
divide row 2 by 11/2
1,-4,-6
0,1,26/11
add up (4/1) *row 2 to row 1
1,0,38/11
0,1,26/11