Odpowiedź:
8x + 4 = 12 |-4
8x = 12 - 4
8x = 8 |: 8
x = 1
- 3x - 5 = 12x + 5 | - 12x
- 3x - 12x - 5 = 5 |+5
-3x - 12x = 5 + 5
-15x = 10 |: -15
x =
3/5 x - 4 = 4x + 7 | * 5
3x - 20 = 20x + 35 |-20
3x - 20x - 20 = 35 |+ 20
3x - 20x = 55
- 17x = 55 |:-17
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Odpowiedź:
9x +4 = 3/7 x -12 mogłabyś jeszcze te
8x + 4 = 12 |-4
8x = 12 - 4
8x = 8 |: 8
x = 1
- 3x - 5 = 12x + 5 | - 12x
- 3x - 12x - 5 = 5 |+5
-3x - 12x = 5 + 5
-15x = 10 |: -15
x =
3/5 x - 4 = 4x + 7 | * 5
3x - 20 = 20x + 35 |-20
3x - 20x - 20 = 35 |+ 20
3x - 20x = 55
- 17x = 55 |:-17
x =