Question

In a certain country, the number of charter schools is 4 less than twice the number of alternative schools. We know that there are 48 charter schools in the country. How many alternative schools are in the country?

Answer 1

c = 48
c = 2a - 4

48 = 2a - 4
48 + 4 = 2a
52 = 2a
52/2 = a
26 = a <==