Решить уравнения! 1. 8x – 5 = x – 40 2. 9 + 13y = 35 + 26y 3. 6s+ (3s – 2) = 14 4. 8y – (7y – 142) = 51 5. (6x + 1) – (3 – 2x) = 14 6. (6 – 2c) + 4 = – 5c – 3 7. (10x–3) + (14x–4) = 8 – (15 – 22x) 8. (7–10k) – (8–8k) + (10k + 6) = – 8 9. 6y – 20 = 2(5y – 10) – 4y 10.6(1 + 5v) = 5(1 + 6v)
7х = 35
х = 5
9 + 13у= 35 +26у
-13у = 26
у = -2
y=-2
3) 6s+3s-2=14
9s-2=14
9s=16
s=16/9
4) 8y-7y+142=51
y=142-51
y=91
5) 6x+1-3+2x=14
8x=16
x=2