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SOLUTION: 300x+100y+50z=800 20x+5y+5z=55 20y+44z=220
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Question 264863
:
300x+100y+50z=800
20x+5y+5z=55
20y+44z=220
Answer by
JBarnum(2108)
(
Show Source
):
You can
put this solution on YOUR website!
These are so much fun, Use substitution to solve
divide by 50
divide by 5
divide by 4
Re-write the reduced equations:
------------------------
solve this one for "z"
.
solve for y
.
solve for x
x=9/8 now find "y"
------------------------------
y=11/4 now find "z"
-------------------------------
z=15/4 now to do a check
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that means its correct
this took me a real long time I hope it will be easy to understand.