Shelbourne

I was given this example for solving an equation ax=b 1/2(ax)=1/2b (1/2a)x=b/a x=b/a I do not understand why you would multiply ax by 1/2. I also do not get why canceling out 1/a times a/1 leads to a transferring to the other side. Thanks for your clarifi...

How would I write a matrix equation for... 0.2x+0.04y-0.2z=-.03 1.1x-0.6y+0.7z=0.5 0.25x+0.3y-0.35z=0.1 Would you be able to explain WHY you are doing your particular steps (my book offers explanations for similar problems, but I do not understand why eac...