Which of the following choices is the common difference between the terms of this arithmetic sequence?

3x + 7y, 8x + 4y, 13x + y, 18x - 2y, 23x - 5y, ...

Respuesta :

[tex]3x+7y\\8x+4y\\13x+y\\18x-2y\\23x-5y\\\\5x-3y[/tex]

5x - 3y