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How do I Get the answer to 5x+5y=-5 and 6x-5y=-39
By: vocation
Date: Tue-Dec-29-2015-
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5x+5y=-5 
6x-5y=-3
--------------
11x + 0y = -8 { .... 5y + - 5y = 5y - 5y = 0, and -5 + -3 = -5 - +3 = -8 }
11x = -8
x = -8/11
5(-8/11) + 5y = - 5
-40/11 + 5y = -5
5y = -5 + 40/11
y = -1 + 8/11
y = -11/11 + 8/11 = -3/11
---------------------------------
6(-8/11) - 5(-3/11) = -3 {... checks correct for x&y}
5(-8/11) + 5(-3/11) = -5 {...also checks right}
---------------------------------
x = -8/11
y = -3/11
------------
done.
Additional Details added 1 year ago
Ahh, didn't see the 9!
5x+5y=-5 
6x-5y=-39
--------------
11x = -45
x = -45/11
5(-45/11) + 5y = -5
y = 34/11
---------------------------------
6x - 5y = -39
6(-45/11) - 5( 34/11) = -40
----------- wait wait!
6x-5y=-39
5x+5y=-5 
-------------
11x + 0y = -45
x = -45/11
6(-45/11) - 5y = -39
-270/11 - 5y = -39
-5y = -39 + 270/11 = -159/11
-y = -159/55
y = 159/55
---------------
5x+5y= - 5
5(-45/11) + 5(159/55) = -6
---------------------------------- 
still doesn't work!
if x = -45/11, then y = {-3/11, 159/55}
ys/2 = y1+y2 = 144/55 /2 = 72/55
x = -8/11, y = -3/11
-------------------------
6x-5y=-3 can be the only equation. Better check to
see it's -39. since -39 dont work.
Additional Details added 1 year ago
ANSWER: x = -4, y = 3
The problem cant be solved unless the 1st equation,
5x + 5y = -5, is reduced. The it is x + y = -1
so then find x and sub into the second equation: x = -1 - y
Second equation 

6x - 5y = -39
6(-1 - y) - 5y = -39
-6 - 6y - 5y = -39
-11y = -39 + 6
-11y = -33
y = 3
--------------------
x + y = -1
x + 3 = - 1
x = -4
--------------------
DONE!
[d] By: sententiously
Date: Tue-Dec-29-2015
dn
Response
What is 1 + 100



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