can you explain how to do this?

ax+b=c solve for X

theses are the steps:

ax+b=c

ax=c-b [[how do you get from here]]

X=c-b/a [[to here, how does the a and x do that?]]

The answer is:

x=c-b/a (thats a fraction)

thats an example in

my text book but i dont understand how you get that answer

can somebody please help?

thankk youu(: