a/ \(\left(x-34\right).15=0\)
\(\Leftrightarrow x-34=0\)
\(\Leftrightarrow x=34\)
Vậy .....
b/ \(18\left(x-160\right)=18\)
\(\Leftrightarrow x-160=1\)
\(\Leftrightarrow x=161\)
Vậy ...
1. \(\left(x-34\right).15=0\)
\(x-34=0:15\)
\(x-34=0\)
\(x=0+34\)
\(x=34\)
Vậy \(x=34\)
2. \(18.\left(x-160\right)=18\)
\(x-160=18:18\)
\(x-160=1\)
\(x=1+160\)
\(x=170\)
Vậy \(x=170\)
x-34 = 0/15
x-34 = 0
x = x0+34
x = 34
x-160=18/18
x-160=1
x=1+160
x=161