FERNANDO REBUELTA NEVES
14/02/2017 • 11:15
an = a1 + (n-1) x r
124 = 24 + (n-1) x 4
124 - 24 = 4n - 4
100 = 4n - 4
4n = 104
n = 26 multiplos
124 = 24 + (n-1) x 4
124 - 24 = 4n - 4
100 = 4n - 4
4n = 104
n = 26 multiplos