x+80=120
K
Khách
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BB
3
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25 tháng 1 2017
24 x ( 16 -5 ) - 16 x ( 24 - 5 )
= 24 x 11 - 16 x 21
= 264 - 336
= -72.
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NT
11
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25 tháng 1 2017
\(x+200=400\)
\(x=400-200\)
\(x=200\)
k mk nha
thank you very much
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AL
8
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AL
11
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HH
25 tháng 1 2017
x + 67 = 89 - 45
x + 67 = 44
x = 44 - 67
x = - 23
k mk nha
thank you very much
x=120-80
x=40
x + 80 = 120
x = 120 - 80
x = 40