Решите уравнение: 1. 15x-3=10x+12 2. -2x-25=-5x-7 3. 4(5-2y)=29(1-y) 4. 3y=16=8y-9 5. 4x+(11,8-x)=3,8-5x 6. 3y+2(2y-3)=8-7(y-2) 7. 2-5x=x+14 8. 5(y-7)=3(y-4)-29 9. 11-5y=12-6e

1) 15x-3=10x+12
15x-10x=12+3
5x=15
x=3
2) -2x-25=-5x-7
-2x+5x=25-7
3x=18
x=6
3) 4(5-2y)=29(1-y)
20-8y=29-29y
29y-8y=29-20
21y=9
y=9/21=3/7