Teri score 64 points in the first 8 basketball games she played in she scored the same number of points in each game write and solve an equationto find the number of points teri scored in each games

Well, the easiest way to go about this is to take out the number of games played (temporarily, we'll need that number later.) 
We'll make y the points per game and x the number of games.
Now the way to find this out is to divide the number of points by the number of games so:
y = 64/x

now we know x is 8 so we need to solve for y

y = 64/8
y = 8

Teri scored 8 points per game.