x - 47 - 115 = 0
=> x = 0 + 47 + 115
=> x = 162
vậy_
x - 36 : 18 = 12
=> x - 2 = 12
=> x = 14
vậy_
2x = 16
=> x = 8
vậy_
50x = 1
=> x = 1/50
vậy_
a) \(x-47-115=0\) b) \(x-36:18=12\)
\(x-47=115\) \(x-2=12\)
\(x=115+47=162\) \(x=12+2=14\)
c) \(2x=16\Rightarrow2x=2\cdot8\Rightarrow x=8\) d) \(x50=1\Rightarrow x=1:50\Rightarrow x=\frac{1}{50}\)
CÁC BẠN GIÚP MK LÊN 200 DIỂM NHÉ. AI GIÚP MK MK K CHO.
\(x-47-115=0\) \(x-36:18=12\) \(2x=16\)
\(x-47=0+115\) \(x-2=12\) \(x=16:2\)
\(x-47=115\) \(x=12+2\) \(x=8\)
\(x=115+47\) \(x=14\)
\(x=162\)
\(x50=1\)
\(x=1:50\Leftrightarrow x=\frac{1}{50}\)