Please help me with this it is hard for me but not for my seniors First person with correct answer gets Brainliest answer.

Simplify the following expressions:
1) x + (x + 3y)
2) 3a + 3 (a + 5b)
3) 10x + 5 (5x + 3y)
4) 5q + (3p - 3q)
5) 4a + (8 - a)​