Odpowiedź:
2x - 5 =6
2x= 6 +5
2x= 11 /:2
x= 11/2
spr.
2/1 × 11/2 - 5 =6
22/2 - 5= 6
11 - 5 =6
6 = 6
L = P
3x - 2 = 4 - 8x
3x + 8x = 4 +2
11 x= 6 /:11
x = 6/11
spr.
3/1 × 6/11 - 2 = 4 - 8/1 × 6/11
18/11 - 22/11= 4 - 48/11
- 4/11= 44/11 - 48/11
- 4/11= - 4/11
L = P
3x =8
x=8/3
spr.
3/1 × 8/3= 8
24/3 = 8
8 = 8
L = P
1/4 x = 5
x= 5 /: 1/4
x = 5/1 × 4/1
x = 20
spr.
1/4 × 20/1 = 5
5 =5
L=p
