SOLUTION: A+B=10
C/D=4
A+C=3
B+D=9
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Question 1159602: A+B=10
C/D=4
A+C=3
B+D=9
Found 3 solutions by Alan3354, josgarithmetic, greenestamps:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
Do you have a question?
Answer by josgarithmetic(39617) (Show Source): You can put this solution on YOUR website!
You should say what kind of method you need to use.
, ;
-----------this much by just a couple of substitutions. You can solve this for B and D, right? You can then finish on your own for A and C?
Answer by greenestamps(13200) (Show Source): You can put this solution on YOUR website!
(1) From the second given equation, C = 4D.
(2) Add the last two given equations to get A+B+C+D = 12. Then since the first equation tells us A+B=10, we know C+D = 2.
(3) Now substitute the result from (1) in (2). 4D+D = 2. D = 2/5.
Once you have the value of that one variable, it will be easy to find the values of the others.
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