SOLUTION: can you solve this system to check my answers?
9x+8y=50
-3x+5y=14
I got (11.38, 9.625)
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Question 883859: can you solve this system to check my answers?
9x+8y=50
-3x+5y=14
I got (11.38, 9.625)
Found 2 solutions by Alan3354, josmiceli:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
9x+8y=50
-3x+5y=14 times 3 --> -9x + 15y = 42
I got (11.38, 9.625)
===============
9x + 8y = 50
-9x +15y = 42
---------------- Add
23y = 92
y = 4
-----
I got (11.38, 9.625)
Check your answers by subbing for x & y in the equations.
9x+8y=50
9*11.38 + 8*9.625 =? 50
102.42 + 77 =? 50 *** not equal
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
(1)
(2)
Multiply both sides of (2) by
and add the equations
(1)
(2)
and
(1)
(1)
(1)
(1)
--------------
I get ( 2 , 4 )
Here's the plot of both lines to check answer:
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