SOLUTION: Hi guys just want to ask on how to get x and y in this equation. 40x+35y=20,000 and 70x+90y=40,000. Hope you could help! I just want to know how to solve it thank you!

Question 1048839: Hi guys just want to ask on how to get x and y in this equation. 40x+35y=20,000 and 70x+90y=40,000.
Hope you could help! I just want to know how to solve it thank you!
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!

....eq.1
.....eq.2
---------------------------------------
start with
....eq.1 ....solve for

........substitute in eq.2

......solve for

now find

so, exact solutions are: ,

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