Question

Rozwiąż równania :

1. 2(x-1/2)-x+3=3

2. 0=3-(2x+1)

3. 0 = (x-1) -(3x-5)

4. 3(1-x)-(1-2x)=9

5. (-1/2x+1)+3x/2=3

6. 0.5(2-4x)=3-x

7. 12y-(y+5)=10y-y

8. -3(38/3+1)-2=4(1-y)

9. 2(x-5)+15=3(x-4)+10

10. 2(2x-2)-6=4,5(2x-1)+1/2

11. -9(2+y)-3y+8=-2(4y+5)

12. 7(1+3+x)/2+1=3(-3+2+x)

13. 3[2(x+2)]-12x=3(8-4x)

14. 2-x/6+x-4/2=3x+5/3

15. 2x-1/2(3x-2)=7/4-x

16. 3 i 1/3+8=4 i2/5x-8

17. 3x-2(1-2x)=0.5(3x+1.5)

Proszę o poprawne rozwiązania ;) jak najszybciejj .. :) z góry dziękuję ;D

Answer 1

1.  2(x-1/2)-x+3=3

2x-1-x+3=3

x=1

2. 0=3-(2x+1)

0=3-2x-1

-2=-2x

x=1

3. 0 = (x-1) -(3x-5)

0=x-1-3x+5

-4=-2x

x=2

4. 3(1-x)-(1-2x)=9

3-3x-1+2x=9

-x=7

x=-7

5. (-1/2x+1)+3x/2=3

-1/2x+1+1,5x=3

x=2

6. 0.5(2-4x)=3-x

1-2x=3-x

-x=2

x=-2

7. 12y-(y+5)=10y-y

12y-y-5=9y

11y-5=9y

-5=-2y

y=2,5

8. -3(38/3+1)-2=4(1-y)

-38-3-2=4-4y

-47=-4y

y=47/4

9. 2(x-5)+15=3(x-4)+10

2x-10+15=3x-12+10

2x+5=3x-2

7=x

10. 2(2x-2)-6=4,5(2x-1)+1/2

4x-4-6=9x-4,5+0,5

4x-10=9x-4

-6=5x

x=-1,2

11. -9(2+y)-3y+8=-2(4y+5)

-18-9y-3y+8=-8y-10

-10-12y=-8y-10

-4y=0

y=0

12. 7(1+3+x)/2+1=3(-3+2+x)

(28+7x)/2+1=-3+3x

14+3,5x=-4+3x

18=-0,5x

x=-36

13.  3[2(x+2)]-12x=3(8-4x)

3(2x+4)-12x=24-12x

-6x+12=24-12x

6x=12

x=2

14. 2-x/6+x-4/2=3x+5/3

2-x+3(x-4)=2(3x+5)

2-x+3x-12=6x+10

2x-10=6x+10

-4x=20

x=-5

15. 2x-1/2(3x-2)=7/4-x

2x-1,5x+1=7/4-x

0,5x=3/4

x=6/4

16. 3 i 1/3+8=4 i2/5x-8

19 1/3=4 2/5x

58/3=22/5x

x=290/66

17. 3x-2(1-2x)=0.5(3x+1.5)

3x-2+4x=1,5x+0,75

5,5x=2,75

x=1/2