Zadanie 10 klasa 7
Na teraz plssss

a) 1/3x - 2 = x +2 /+2
1/3x = x + 4 /-x
- 2/3x = 4 /:(-2/3)
x = - 6
b) 1 - 6/7x = 4/7 /+6/7x
1 = 6/7x + 4/7 /-4/7
3/7 = 6/7x /:6/7
x = 0,5
c) 6(1/4x-2) = 28
6/4x - 12 = 28 /+12
6/4x = 40 /:6/4
x = 26 i 2/3 ?nie wiem tu wyszło tak dziwnie
d) x/6 - 1/6 = 1
1/6x - 1/6 = 1 /+1/6
1/6x = 7/6 /:1/6
x = 7
e) -2(2x - 1) = x/3
-4x + 2 = 1/3x /+4x
2 = 13/3x /:13/3
x = 9/13 ?tu też -,-
f) 2/5(3-x) = -2
6/5 - 2/5x = - 2 /-6/5
-2/5x = - 16/5 /: (-2/5)
x = 8
zaraz napiszę resztę
g) 3/4(2 - 3x) = -6
6/4 - 9/4x = -6 /-6/4
- 9/4x = - 30/4 /: - 9/4
x = 3 i 1/3
h) 1/5(x -3)= 9 - x
1/5x - 3/5 = 9 - x /+3/5
1/5x = 48/5 - x /+x
6/5x = 48/5 /:6/5
x = 8
i) (0,6 + x) : 2 = x +1
0,3 + 1/2x = x + 1 /-1/2x
0,3 = 1/2x +1 / -1
- 7/10 = 1/2x /:1/2
x = -1 i 2/5