SOLUTION: -2x=-y+9 X=4y-15

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Question 704035: -2x=-y+9
X=4y-15
Answer by sachi(548) About Me  (Show Source):
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-2x=-y+9 =>x=(y-9)/2..........1
X=4y-15.......................2
equating the both
(y-9)/2=4y-15
or y-9=8y-30
or 7y=21
or y=3
from 2
x=4*3-15=-3
ans