Решить уравнение (3x)'*(x+2)-3x*(x+2)'/(x+2)^2

1. 3x+2x=5 ⇒ 5x = 5 ⇒ x = 1
2. x+2x=2 ⇒ 3x = 2 ⇒ x = 2/3
3. 3x+4x+3=0 ⇒ 3x+4x=-3 ⇒ 7x = -3 ⇒ x = -3/7
4. 3(x-1)=2(x+2) ⇒ 3x-3=2x+4 ⇒ 3x-2x=3+4 ⇒ x = 7
5. 2x-1,8(x-1)=3,2 ⇒ 2x-1,8x+1,8=3,2 ⇒ 2x-1,8x=-1,8+3,2 ⇒ 0,2x = 1,4 ⇒ x = 7
6. 10-8(x-6)=2-4x ⇒ 10-8x+48=2-4x ⇒ -8x+4x=-10-48+2 ⇒ -4x = -56 ⇒ x = 14
7. 8(x-3)-(x+1)=3 ⇒ 8x-24-1x-1=3 ⇒ 8x-1x=+24+1+3 ⇒ 7x = 28 ⇒ x = 4
8. 4x+3+x=24 ⇒ 4x+1x=-3+24 ⇒ 5x = 21 ⇒ x = 4,2
9. 3,2x-2,7x=0,6 ⇒ 0.5x = 0.6 ⇒ x = 1,2
10. 9(x-2)-3(2x+1)=5x ⇒ 9x-18-6x-3=5x ⇒ 9x-6x-5x=+18+3 ⇒ -2x = 21 ⇒ x = -10,5
11. 2+3(x-3)=2x-6 ⇒ 2+3x-9=2x-6 ⇒ 3x-2x=-2+9-6 ⇒ 1x = 1 ⇒ x = 1
12. -2(x-5)+3(x-4)=4x+1 ⇒ -2x+10+3x-12=4x+1 ⇒ -2x+3x-4x=-10+12+1 ⇒ -3x = 3 ⇒ x = -1
13. 5(x+1)+2(x-1)-x-3=9 ⇒ 5x+5+2x-2-1x-3=9 ⇒ 5x+2x-1x=-5+2+3+9 ⇒ 6x = 9 ⇒ x = 1,5
14. x-6=2x-3 ⇒ -2x=+6-3 ⇒ -2x = 3 ⇒ x = -1,5
15. 6(x-3)-2(x-4)=1 ⇒ 6x-18-2x+8=1 ⇒ 6x-2x=+18-8+1 ⇒ 4x = 11 ⇒ x = 2,75