<PRE><B>Question 169662</B>
3x+2y=22
5x-4y=0
-------------
Elimination:
6x+4y = 44
5x-4y = 0
--------------
11x = 44
x = 4
---
3*4+2y = 22
2y = 10
y = 5
Ans: (4,5)
===========================
Substitution:
3x+2y=22
5x-4y=0
---------
x = (4/5)y
3(4/5)y + 2y = 22
(12/5+  10/5)y = 22
(22/5)y = 22
(1/5)y = 1
y = 5
---
x = (4/5)5 = 4
Ans: (4,5)
===========================
Graphing:
3x+2y=22
5x-4y=0
------------
y= (-3/2)x + 11
y = (5/4)x
{{{graph(400,300,-10,10,-10,10,(-3/2)x + 11,(5/4)x)}}}
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Cheers,
Stan H.




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