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2 + 4r = 18 - 8s5 + r = 9 + 32s找 s 和 r

2005-05-18 17:39:19 · 4 個解答 · 發問者 changchih 7 in 科學 其他:科學

4 個解答

4R-8S=16........(1)
R-32S=4........(2)

(1)-(2)*4

4R-8S=16
-(4R-128S=16)

S=0帶入(1)

4R=16

R=4

2005-05-18 17:47:50 · answer #1 · answered by 凱瑋 2 · 0 0

s=0
r=4(如果這是個普通的二元一次方程式的話)

2005-05-18 17:41:57 · answer #2 · answered by Made in China 3 · 0 0

是吧

2005-05-18 21:43:56 補充:
你不寫你怎麼找我要怎麼才會看的懂?
s = 0
書後面就有了
誰寫出來點數就給他

2005-05-18 17:41:40 · answer #3 · answered by changchih 7 · 0 0

這是聯立方程式ㄇ?

2005-05-18 17:40:37 · answer #4 · answered by 松逸 2 · 0 0

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