SOLUTION: y=2x-6 x+y=9

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Question 399138: y=2x-6
x+y=9
Answer by mananth(16946) About Me  (Show Source):
You can put this solution on YOUR website!
y=2x-6
y-2x=-6...........1
x+y=9.............2
multiply (2) by 2
2x+2y=18
add to (1)
3y=18-6
3y=12
/3
y =4
..
plug value of y in (1)
4=2x-6
+6
10=2x
/2
x= 5