Odpowiedź:
1 -x = (2x - 3)/5 | * 5
5(1 -x) =2x - 3
5 - 5x = 2x - 3
- 5x - 2x = - 3 - 5
- 7x = - 8
7x =8
x = 8/7 = 1 i 1/7
1-x=[tex]\frac{2x-3}{5\\}[/tex] /·5
5-5x=2x-3
-5x-2x=-5-3
-7x=-8/:-7
x=[tex]\frac{8}{7}[/tex]= 1[tex]\frac{1}{7}[/tex]
