x 2-5x x x-1 2(x+2) 1
-(-- - 2) = 4-x ------- - (-- +2)= 1-x ---- - ---------= -- - x | *18
4 4 2 6 9 3
x
2- --- = 4-x | *4 2-5x x 3(x-1)-4(x+2)= 6-18x
4 ------ - -- - 2= 1-x | *4 3x-3-4x-8-6+18x= 0
8-x=16-4x 4 2 3x-4x+18x= 3+8+6
-x+4x= 16-8 2-5x-2x-8= 4-4x 17x= 17
3x= 8 -5x-2x+4x= 4+8-2 x= 17:17
8 -3x= 10 x=1
x= --- 10
3 x= - ----
3