\(a,\left(x-1\right)=0:12\\ x-1=0\\ x=0+1\\ x=1\\ b,x=0:0\\ x=0\\ c,6x=613+5\\ 6x=618\\ x=618:6\\ x=103\\ d,\left(x-47\right)=0+115\\ x-47=115\\ x=115+47\\ x=162\)
12(x - 1) = 0
x - 1 = 0 : 12
x - 1 = 0
x = 1
---------------
0 : x = 0
x = 0 : 0
x = 0
---------------
6x - 5 = 613
6x = 613 + 5
6x = 618
x = 103
-----------------
(x - 47) - 115 = 0
x - 47 = 115
x = 115 + 47
x = 162
\(12 (x-1)=0\)
\( x-1=0:12\)
\(x-1=0\)
\(x=0+1\)
\(x=1\)
\(0:x=0\)
\(x=0:0\)
\(x=0\)
\(6.x-5=613\)
\(6.x=613+5\)
\(6.x=618\)
\(x=618:6\)
\(x=103\)
\((x-47)-115=0\)
\(x-47=0+115\)
\(x-47=115\)
\(x=115+47\)
\(x= 162\)