Odpowiedź:
2x - (x-3) = 5x- 4
2x - x+ 3 = 5x - 4
x+ 3 = 5x - 4
x - 5x=- 4- 3
- 4x = - 7
4x = 7
x= 7/4= 1 3/4
[tex]2x-(x-3)=5x-4\\2x-x+3=5x-4\\x-5x=-4-3\\-4x=-7 |:(-4)\\x=\frac{7}{4}\\x=1\frac{3}{4}=1,75[/tex]
spr
2*1,75-(1,75-3)=5*1,75-4
3,5+1,25=8,75-4
4,75=4,75
L=P
