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a).
x - 0,75x = 1;
0,25x = 1
x = 4
b). 2 ( x - 1 ) - x = 2;
2x - 2 -x = 2
x - 2 = 2
x = 4
c). 3 ( x - 2 ) - 2 ( x - 1 ) = 0;
3x - 6 - 2x + 2 = 0
x - 4 = 0
x = 4
d). x - 6 = 2 ( x - 1 ) + 8;
x - 6 = 2x -2 + 8
- x - 6 = 6
- x = 12
x = -12
e). 4 ( x + 1 ) - 5(9 x + 3 ) = 1;
4x + 4 - 45x + 15 = 1
41x + 19 = 1
41x = - 18
x = 0,4390244
f). 2x - ( x + 6 ) = 3 ( x - 2 ) + 24
2x - x - 6 = 3x -6 + 24
x - 6 = 3x - 18
- 2x - 6 = - 18
-2x = - 12
- x = - 6
x = 6
Jutro dam resztę.