1. y+6=53 2. X-7=18 要驗算!!!!!!

2008-04-19 11:33 pm

1. y+6=53 2. X-7=18 要驗算!!!!!!

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回答 (4)

2008-04-20 12:24 am

y+6=53 驗算: 左方=y+6(y=47)
y+6-6=53-6 =47+6
y=47 =53(右方)

X-7=18 驗算: 左方=X-7(X=25)
X-7+7=18+7 =25-7
X=25 =18(右方)

參考: 我

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2008-04-19 11:42 pm

1)y+6=53
y+6-6=53-6
y=47
驗算~47+6=53
2)x-7=18
x-7+7=18+7
x=25
驗算~25-7=18

參考: 我

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2008-04-19 11:38 pm

Y+6=53
Y+6-6=53-6
Y=47

驗算
47+6=53

X-7=18
X-7+7=18+7
X=25

驗算
25-7=18

參考: 自己

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2008-04-19 11:38 pm

1.y+6=53
y=53-6
y=47

2. X-7=18
X=18+7
X=25

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