1) 13y – 4a + 5k + a + 3a; 2) - 3(3c – 2) + 2(1 – c); 3) - 2(2a – 4p + 1) + 2(a – 2); 4) 2(x + 1) - (3 + (x + 1)).
1)13y+5k
2)-9c+6+2-2c=-11c+8
3)-4a+8p-2+2a-4=-2a+8p-6
4)2x+2-3x-3=-x-1