math chage of subject of formu

2009-08-03 8:24 pm
Ax+By+=0 (chage the subject of the formula to y)

p(x+y)+q(x-y)+r=0 (chage the subject of the formula to x)
更新1:

Ax+Bx+C=0

回答 (1)

2009-08-03 8:46 pm
✔ 最佳答案
As follows:

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