Solving for z
-cz+6z=tz+83

Can somebody 1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Find the value of x for which line a is parallel to line b

Ten members of balin's soccer team ran warm ups for practice. each member ran the same distance. their combined distance was 5/6 of a mile. to find the distance that each member ran, balin wrote the expression below.