What is the y in the solution to this stsytem of equations

Proceed as in example 3 in section 6.1 to rewrite the given expression using a single power series whose general term involves xk. ∞ n(n − 1)cnxn − 2 n = 2 − 4 ∞ ncnxn n = 1 + ∞ cnxn n = 0

Henry is an avid reader, he devours 90 pages in half an hour how many pages has henry read per minute?

Complete the solution of the equation. find the value of y when x equals to 28 x+3y=28