SOLUTION: if x+2y=10andx+5y=19what is the value of y

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Question 113311: if x+2y=10andx+5y=19what is the value of y
Answer by edjones(8007) About Me  (Show Source):
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A) x+2y=10
B) x+5y=19
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A) x=10-2y subtract 2y from each side.
B)10-2y+5y=19
3y=9 add -10 to each side.
y=3 divide 3 by each side.
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Ed