Odpowiedzi

2010-01-11T18:32:03+01:00
1. x =1
2. x =2
3. x =0
4. x=1
5. x = dwie trzecie
6. x=3
7. x=3
8.x=-4
9. x= 0
10. x=piędziesiąt osiem dwudziestych dziewiątych
12. x= jedna ósma
to są rozwiązania od lewej strony po kolei :)
2010-01-11T18:45:35+01:00
36x-14=14x-36 | +36
36x + 22 = 14x | - 14x
22x = 22 | :22
x = 2

-7x+5=11x+41
-7x + 11x = 5 + 41
4x = 46 | :4
x = 11,5

-2x-7=2x-7 | +2x
-7 = 4x - 7 |+7
x = 0

7x-4=x+2
8x = -4 + 2
8x = -2 | :8
x = 0,25

-5x+4=x-8
-4x = -4 | :4
x = 1

4x+2=8 | -2
4x = 6 | :4
x = 1,5

7x-13=8 | +13
7x = 21 | :7
x = 3

3x-4=4x | -3x
-4 = x

3x+9=-3x+9
6x = 18 | :6
x = 3

-27x+1=2x+59 | +27x
1 = 29x + 59 | - 59
- 58 = 29x | :29
x = -2

45x-19=19x-45 | -19x
26x - 19 = - 45 |+19
26x = 26 | :26
x = 1

82x-9=-18x+1 | +18x
100x - 9 = 1 | +9
100x = 10 | :100
x = 0,1








2010-01-11T23:09:43+01:00
36x-14=14x-36
36x -14x = -22
22x= -22//:22
x = -1

-7x+5=11x+41
-18x=36//: (-18)
x= -2

-2x-7=2x-7
-4x = 0//:(-4)
x = 0

7x-4=x+2
6x = 6 //:6
x =1

-5x+4=x-8
-6x = -12//:(-6)
x = 2

4x+2=8
4x = 6//:4
x = 1,5

7x-13=8
7x = 21//:7
x=3

3x-4=4x
3x -4x = 4
-1x = 4//:(-1)
x = -4

3x+9=-3x+9
6x = 0//:6
x = 0

-27x+1=2x+59
-29x = 58 //:(-29)
x =- 2

45x-19=19x-45
45x-19x = -45+19
26x = -26//: (26)
x = -1

82x-9=-18x+1
100x = 10/100
x= 0,1