SOLUTION: Given 3x - 2y = 6.1 and x + y = 3.2. Find x and y

Algebra ->  Equations -> SOLUTION: Given 3x - 2y = 6.1 and x + y = 3.2. Find x and y      Log On


   

Question 679206: Given 3x - 2y = 6.1
and x + y = 3.2.
Find x and y
Answer by ReadingBoosters(3246) About Me  (Show Source):
You can put this solution on YOUR website!
y = 3.2 - x
...
substitute into the first equation
3x - 2(3.2-x) = 6.1
...
distribute the 2
3x - 6.4 + 2x = 6.1
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combine like terms
5x = 6.1 + 6.4
5x = 12.5
...
divide both sides by 5
highlight_green%28x+=+2.5%29
...
y = 3.2 - 2.5 = highlight_green%28y=.7%29
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