SOLUTION: how can i solve y=1/2x + 3 -x+ 2y = 7

Algebra ->  Coordinate Systems and Linear Equations  -> Lessons -> SOLUTION: how can i solve y=1/2x + 3 -x+ 2y = 7      Log On


   

Question 693618: how can i solve y=1/2x + 3 -x+ 2y = 7
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
Substitution
-x+%2B+2%28%281%2F2%29x%2B3%29+=+7 ==> distribute the 2
-x + x + 6 = 7
6+%3C%3E+7
There is not a solution.
...
Upon further review,
one line is highlight%28y=%281%2F2%29x%2B3%29
another line is
-x + 2y = 7
2y = x + 7
highlight%28y=%281%2F2%29x+%2B+7%2F2%29
Both lines have the same slope, therefore, the lines are parallel
and will never intersect, which is why there is no solution.
…………………………….
Have more questions? Get them all answered at once.
HomeworkHelpers@ReadingBoosters.com
Individualized Coaching: www.MyHomeworkAnswers.com
--Reading Boosters