11. Решите уравнение: 1) 3(x-2) = x+2; 2) 5-2(x-1) = 4-x; 3) (7x+1)-(9x+3) = 5; 4) 3,4+2y = 7(y-2,3); 5) 0,2(7-2y) = 2,3-0,3(y-6); 6) 2/3(3x-1) = 4x+2.

1) 3x-6 = x+2, 2x = 8, x = 4.
2) 5-2x+2 = 4-x, 7-x = 4, x = 3.
3) -2x-2 = 5, -2x = 7, x = -3.5.
4) 3,4+2y = 7y-16,1, 5y = 19,5, y = 3,9.
5) 1,4-0,4y = 2,3-0,3y+1,8, 1,4-0,4y = 4,1-0,3y, 0,1y = -2,7, y = -27.
6) 2x-2/3 = 4x+2, 2x = 4x+8/3, -2x = 8/3, x = -4/3.