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borishaifa [10]
3 years ago
5

X=y-4 and 2x+4y=10 help me ​

Mathematics
1 answer:
Murljashka [212]3 years ago
6 0

Answer:

Step-by-step explanation:

1. x = y-4

0 = y - 4 -x

4 = y - x

2. 2x+4y = 10

x+4y = 5

x+y = 5/4

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3 years ago
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So this has to do with permutations and honestly I need an explanation on how I can figure these out.
AnnZ [28]
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u can also remember it by theorem of multiplication as.....in first place (I.e. first code can be any no. out of 4,5,2&7 ....so 4*.....

as first place is acquired by a certain no. that leaves three no. to fill third place and when third place I'd occupied it leaves 2 numbers to fill second place and lastly only one no. to fill the last place .....so it's result will be like 4*3*2*1.



I know this is pretty much confusing ....but still I tried my best....

if anything troubles u here feel free to ask me
6 0
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