已知c≠0,3a=5b+2c,3/2a+1/2b=4c,求(2a+3b-4c)/(3a-2b+5c)

已知c≠0,3a=5b+2c,3/2a+1/2b=4c,求(2a+3b-4c)/(3a-2b+5c)
已知c≠0,3a=5b+2c,3/2a+1/2b=4c,求(2a+3b-4c)/(3a-2b+5c)

已知c≠0,3a=5b+2c,3/2a+1/2b=4c,求(2a+3b-4c)/(3a-2b+5c)
3a=5b+2c——①
3/2a+1/2b=4c——②
②×2得：3a+b-8c=0——③
①得：3a-5b-2c=0——④
④-③得：-6b+6c=0
所以b=c——⑤
代入③式 得:a=7/3c——⑥
将⑤⑥代入(2a+3b-4c)/(3a-2b+5c)式：
得：(14/3c+3c-4c)/(7c-2c+5c)=(11/3c)/(10c)=11/30

Author notes: I can't seem to get the first chapter to work out so here's what happens: There's an intro to the character, who is on a trip in the rain forest when she hears something. After following...

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Author notes: I can't seem to get the first chapter to work out so here's what happens: There's an intro to the character, who is on a trip in the rain forest when she hears something. After following the sound, she finds herself dumped through a lake and into another world,UGG sac a Main, one covered in the snow of winter. After trying to find her way,UGG Stiefel Delaine, she ends up falling and breaking her arm,ugg online kaufen, nearly running into a figure before her.
I will work on trying to get it to work,blousons moncler, it is a good story, truly,moncler italia, please try to ignore the horrid excuse for the beginning stated above. ^^Topics related articles：


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2011 vintage namely still in power. A mini retro feel of the plaid shirt is nearly a must-have item of manpower, with a bound of orange shorts and a gray sweater, casual American neatness girls easily...

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