What is the value of x?
5 + 2/3x = -x + 20
Please explain:

Find the pattern and use it to list the nth term in the sequence. 6, 12, 20, 30, 42, 56, the nth term of the sequence is

Solve each equation using the quadratic formula. find the exact solutions. 6n^2 + 4n - 11

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.