可唔可以幫我計下呢條代數方程
要埋步驟同答案THX
10=2-6b+14
點做代數方程??
2010-09-22 1:08 am
回答 (5)
2010-09-22 1:11 am
✔ 最佳答案
10=2-6b+1410=16-6b
10-16=-6b
-6=-6b
b=1
2010-09-22 3:24 am
10=2-6b+14
I use the method which solve slowly.It is easy to understand.
_____________________
10=2-6b+14
_____________
10-2=2-6b+14-2
8.....=-6b+14
8-14=-6b-14+14
-6.....=-6b
b.......=1
I use the method which solve slowly.It is easy to understand.
_____________________
10=2-6b+14
_____________
10-2=2-6b+14-2
8.....=-6b+14
8-14=-6b-14+14
-6.....=-6b
b.......=1
2010-09-22 1:17 am
10=2-6b+14
10 = ( 2 + 14 ) - 6b
10 = 16 - 6b
10 - 10 = 16 - 6b - 10
0 = 6 - 6b
0 + 6b = 6 - 6b + 6b
6b = 6
6b ÷ 6 = 6 ÷ 6
b = 1
10 = ( 2 + 14 ) - 6b
10 = 16 - 6b
10 - 10 = 16 - 6b - 10
0 = 6 - 6b
0 + 6b = 6 - 6b + 6b
6b = 6
6b ÷ 6 = 6 ÷ 6
b = 1
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