Question

Solve each equation or formula.show work please
v=r+at, for a

Answer 1

v-r=at (You subtract r from both sides of the equation)
Divide both sides by t.
(v-r)/t= a

Answer 2

Are you rearranging the formula to solve for a?
If so:

v= r + at
v - r = at

Since at means the same as a x t, the opposite would be to divide.

(v - r)/ t = a