Решите уравнения:
1) 5x + 4 = x + 12
2) 13 – 5y = 8 – 2y
3) 5x + (3x – 7) = 9
4) 3y – (5 – y) = 11
5) (7a + 1) – ( 6a + 3) = 5
6) (8s + 11) – 13 = 9s– 5
7) (5x – 3)+(7x – 4) = 8 – (15 – 11x)
8) (7 – 5k) – (8 – 4k) + (5k + 6) = 8
9) 2x + 5 = 2(x + 1) + 11
10) 15(v + 2) – 30 = 15v