1) -3(y + 2) + 2(2y - 1) = -3y - 6 + 4y - 2 = 4y - 3y - 6 - 2 = y - 8;
2) 8x - (2x + 5) + (x - 1) = 8x - 2x - 5 + x - 1 = 8x - 2x + x - 5 - 1 = 7x - 6.
1) -3(y + 2) + 2(2y - 1) = -3y - 6 + 4y - 2 = 4y - 3y - 6 - 2 = y - 8;
2) 8x - (2x + 5) + (x - 1) = 8x - 2x - 5 + x - 1 = 8x - 2x + x - 5 - 1 = 7x - 6.