At first transpose 4 to left and -1/2(x-6) to right. Then it becomes 1=1/2(x-6). Then transpose 1/2 to left. It becomes 1*2/1= x-6. Now we get x-6=2. At last transpose -6 to right. x=2+6. Adding 2 and 6 we get 8. Therefore the value of x is 8. This the solution of the above equation.