x + 63 = 500 - 400
K
Khách
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T
7
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C
2 tháng 10 2016
\(\left(8+9+1+2\right).100\)
\(=20.100\)
\(=2000\)
chuc bn hoc gioi!!
nhae
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PT
1 tháng 10 2016
x + 99 + 1 = 100
x + 99 = 100 - 1
x + 99 = 99
x = 99 - 99
x = 0
T
12
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x+63=100
x=100-63
x=37
k mk nha bn!
x + 63 = 500 - 400
x + 63 = 100
x = 100 - 63
x = 37