Odpowiedź:
1)
1 + 4x = 2
4x = 2 - 1 = 1
x = 1/4
2)
15 - 2x = - 3
- 2x = - 3 - 15 = - 18
2x = 18
x = 18/2 = 9
3)
(x + 1)/3 = 7 | * 3
x + 1 = 21
x = 21 - 1 = 20
4)
(3 - x)/2 = 1/3 | * 6
3(3 - x) = 2
9 - 3x = 2
- 3x = 2 - 9 = - 7
3x = 7
x = 7/3 = 2 1/3
5)
2x - 5 - x - 3 = 8
x - 8 = 8
x = 8 + 8 = 16
6)
6 - x - 1/2x = 4 | * 2
12 - 2x - x = 8
- 3x = 8 - 12
- 3x = - 4
3x = 4
x = 4/3 = 1 1/3
7)
3/4x - x - 1 = 0 | * 4
3x - 4x - 4 = 0
- x = 4
x = - 4
Rozwiąż Równania:
Mam nadzieję, że pomogłam ;)
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Odpowiedź:
1)
1 + 4x = 2
4x = 2 - 1 = 1
x = 1/4
2)
15 - 2x = - 3
- 2x = - 3 - 15 = - 18
2x = 18
x = 18/2 = 9
3)
(x + 1)/3 = 7 | * 3
x + 1 = 21
x = 21 - 1 = 20
4)
(3 - x)/2 = 1/3 | * 6
3(3 - x) = 2
9 - 3x = 2
- 3x = 2 - 9 = - 7
3x = 7
x = 7/3 = 2 1/3
5)
2x - 5 - x - 3 = 8
x - 8 = 8
x = 8 + 8 = 16
6)
6 - x - 1/2x = 4 | * 2
12 - 2x - x = 8
- 3x = 8 - 12
- 3x = - 4
3x = 4
x = 4/3 = 1 1/3
7)
3/4x - x - 1 = 0 | * 4
3x - 4x - 4 = 0
- x = 4
x = - 4
Rozwiąż Równania:
1)
1 + 4x = 2
4x = 2 - 1 = 1
x = 1/4
2)
15 - 2x = - 3
- 2x = - 3 - 15 = - 18
2x = 18
x = 18/2 = 9
3)
(x + 1)/3 = 7 | * 3
x + 1 = 21
x = 21 - 1 = 20
4)
(3 - x)/2 = 1/3 | * 6
3(3 - x) = 2
9 - 3x = 2
- 3x = 2 - 9 = - 7
3x = 7
x = 7/3 = 2 1/3
5)
2x - 5 - x - 3 = 8
x - 8 = 8
x = 8 + 8 = 16
6)
6 - x - 1/2x = 4 | * 2
12 - 2x - x = 8
- 3x = 8 - 12
- 3x = - 4
3x = 4
x = 4/3 = 1 1/3
7)
3/4x - x - 1 = 0 | * 4
3x - 4x - 4 = 0
- x = 4
x = - 4
Mam nadzieję, że pomogłam ;)