You can put this solution on YOUR website! Solve the first equation first.
3x + 5x = -8
Combine Like Terms 8x = -8
Solve for x x = -1
Since you found that x = -1, the next part of the question asks you
what x + 1 is. You'd then plug in that -1 for the x so that you'll have -1 + 1 which = 0.