If 2x + 5y =8 and 5x + 2y = 6 then x+y =?
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−5x+2y−8=0
2x−5y−3=0.
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Answer:
2x+5y=8
5x+2y=6
Step-by-step explanation:
1 equ x5 10x+25y=40
2equ x2 10x+4y=12
+ or - change 21y= 28
y= 28-21=7
y=7
5x+2(7)=6
5x+14=6
5x=6/14
5x= 3/7
x=3/7x5
x=8/7 x+y= 7
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