4x - 1 - x + 2
-------- ----------=2
3 2
2(4x-1) - 3(x+2)=12
8x - 2 -3x - 6-12 =0
5x-20=0
5x=20
x=4
5x+1 + 3x+1
--------- ----------=9
4 2
5x+1 + 2(3x+1)=36
5x+1 +6x +2-36=0
11x -33=0
11x=33
x=3
0,4x - 1 - 0,6x - 5
------------ -------------=1
7 2
2(0,4x-1) - 7(0,6x - 5 )=14
0,8x - 2 - 0,42x + 35 -14 =0
0,34x + 19=0
19
x=-- ----------
0,34