Hej!
6 + 4(3 - k) = 3(-2k + 9)
6 + 12 - 4k = -6k + 27
-4k + 6k = 27 - 6 - 12
2k = 9 / : 2
k = 4,5
9(m + 2) + 1 = 19 + 8m
9m + 18 + 1 = 19 + 8m
9m - 8m = 19 - 18 - 1
m = 0
4 - (8 + 2n) = 3(n + 2)
4 - 8 - 2n = 3n + 6
-2n - 3n = 6 - 4 + 8
-5n = 10 / : (-5)
n = -2
3 - 2x = 1 - (-2 + x)
3 - 2x = 1 + 2 - x
-2x + x = 1 + 2 - 3
-x = 0 / : (-1)
x = 0
3(y + 2) + 4(y - 1) = 7
3y + 6 + 4y - 4 = 7
3y + 4y = 7 - 6 + 4
7y = 5 / : 7
y = 5/7
2z - 5(4 + 0,2z) = 0
2z - 20 - z = 0
2z - z = 20
z = 20
Pozdrawiam! - Julka
