Answer:
b-y
----- = m
x
Explanation:
y=mx+b To be left with mx we will take +b to the side with y which it will change to -b giving the equation b-y=mx to be left with m we will divide both sides with x which will be: b-y=mx
---- ---
x x
the x on the right side will cancel with each other giving the equation m= b-y
----
x