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yakovlevavaleria48
@yakovlevavaleria48
August 2022
1
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Тема: Линейные уравнения с одной переменной содержащие переменную под знаком модуля
Если можно , то как можно скорее , да , я и сама знаю что там 22 примера , но можете сделать всего 8-10 примеров
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TigRus
Ответ:
1.
8x - 5 = х - 40
8х - х = - 40 + 5
7x = - 35
x = - 5
2.
9 + 13 y = 35 + 26у
13y – 26y = 35 - 9
- 13y = 26
у = - 2
3.
6s + (3s - 2) = 14
6s + 3s - 2 = 14
9s - 2 = 14
9s = 14 + 2
9s = 16
S = 16/9
4.
8y - (7y - 142) = 51
8y - 7y + 142 - 51
у+ 142 – 51
y = 51 - 142
y = - 91
5.
(6x + 1) - (3 - 2x) = 14
6х +1 - 3 + 2x = 14
8x - 2 = 14
8x = 14 + 2
8x = 16
х = 2
6.
(6-2с) + 4 = - 5c - 3
6 - 2c + 4 = - 5c - 3
10 – 2c = - 5c - 3
- 2с + 5c = – 3 - 10
Зc = - 13
C = - 13/3
7.
(10x - 3) + (14х – 4) = 8- (15 – 22х)
10x - 3 + 14х – 4 = 8 - 15 + 22х
24x -7 = -7+ 22х
24х = 22х
24x - 22х = 0
2x = 0
X = 0
8.
(7-10k) - (8 - 8k) + (10k +6) = -8
7 - 10k - (8 - 8k ) + 10k +6 = -8
7-8+8k + 6 = - 8
7 + 8k +6 = 0
13 + 8k = 0
8k = - 13
K = -13/8
9.
6у - 20 = 2(5y - 10) - 4 у
6у - 20 = 10у - 20 - 4 у
6у = 10у - 4 у
6у = 6у
10.
6(1+5v) = 5(1+6v)
6+ 30v = 5 + 30v
6 = 5
11.
4(х + 3,6) = 3х - 1,4
4х + 14,4 = 3х - 1,4
4x - 3x = - 1,4 - 14,4
x = - 15,8
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Answers & Comments
1.
8x - 5 = х - 40
8х - х = - 40 + 5
7x = - 35
x = - 5
2.
9 + 13 y = 35 + 26у
13y – 26y = 35 - 9
- 13y = 26
у = - 2
3.
6s + (3s - 2) = 14
6s + 3s - 2 = 14
9s - 2 = 14
9s = 14 + 2
9s = 16
S = 16/9
4.
8y - (7y - 142) = 51
8y - 7y + 142 - 51
у+ 142 – 51
y = 51 - 142
y = - 91
5.
(6x + 1) - (3 - 2x) = 14
6х +1 - 3 + 2x = 14
8x - 2 = 14
8x = 14 + 2
8x = 16
х = 2
6.
(6-2с) + 4 = - 5c - 3
6 - 2c + 4 = - 5c - 3
10 – 2c = - 5c - 3
- 2с + 5c = – 3 - 10
Зc = - 13
C = - 13/3
7.
(10x - 3) + (14х – 4) = 8- (15 – 22х)
10x - 3 + 14х – 4 = 8 - 15 + 22х
24x -7 = -7+ 22х
24х = 22х
24x - 22х = 0
2x = 0
X = 0
8.
(7-10k) - (8 - 8k) + (10k +6) = -8
7 - 10k - (8 - 8k ) + 10k +6 = -8
7-8+8k + 6 = - 8
7 + 8k +6 = 0
13 + 8k = 0
8k = - 13
K = -13/8
9.
6у - 20 = 2(5y - 10) - 4 у
6у - 20 = 10у - 20 - 4 у
6у = 10у - 4 у
6у = 6у
10.
6(1+5v) = 5(1+6v)
6+ 30v = 5 + 30v
6 = 5
11.
4(х + 3,6) = 3х - 1,4
4х + 14,4 = 3х - 1,4
4x - 3x = - 1,4 - 14,4
x = - 15,8