Помогите! Нужно решить с: 1) 2 (3+y) + 3 (2y+4) = 2 2) 3 (3u + 1) - 4 (u-4) = 29 3) 7 (2x + 3) = 91 - 4 (3x - 2) 4) 5 (2z - 3) = 6 (3z + 2) - 35 5) 2 (2v - 4) = 4 (3 - v) - 44 6) 6 (2t - 5) + 2 (3t - 7) = -26 7) 5 (3z - 2) = -1...
Помогите! Нужно решить с:
1) 2 (3+y) + 3 (2y+4) = 2
2) 3 (3u + 1) - 4 (u-4) = 29
3) 7 (2x + 3) = 91 - 4 (3x - 2)
4) 5 (2z - 3) = 6 (3z + 2) - 35
5) 2 (2v - 4) = 4 (3 - v) - 44
6) 6 (2t - 5) + 2 (3t - 7) = -26
7) 5 (3z - 2) = -16-3 (2z + 5)
8) 8 (2 - x) = 3 (4x + 3) + 87
9) 4 (6y - 5) = 5 (2y - 3) + 51
10) 5 (7 - 2s) - 4 (3 - 5s) =53
11) 3 (2z - 1) = 55 - 4(z + 2)
12) 5 (2 - v) - 2 (2v - 1) - 26 = 0
13) 3 (x - 4) + 7 (2x - 3) = -84
14) 2 (2u + 3) - 4 (3 - 2u) = -6
Гость
Ответ(ы) на вопрос:
Гость1) 2 (3+y) + 3 (2y+4) = 2
6 + 2y + 6y + 12 = 2
8y = -16
y = -2
2) 3 (3u + 1) - 4 (u-4) = 29
9u + 3 - 4u + 16 = 29
5u = 10
u = 2
3) 7 (2x + 3) = 91 - 4 (3x - 2)
14x + 21 = 91 - 12x + 8
26x = 91 + 8 - 21
26x = 78
x = 3
4) 5 (2z - 3) = 6 (3z + 2) - 35
10z - 15 = 18z + 12 - 35
-8z = 12 - 20
-8z = -8
z = 1
5) 2 (2v - 4) = 4 (3 - v) - 44
4v - 8 = 12 - 4v - 44
8v = 12 - 44 + 8
8v = -24
v = -3
6) 6 (2t - 5) + 2 (3t - 7) = -26
12t - 30 + 6t - 14 = -26
18t = -26 + 30 + 14
18t = 18
t = 1
7) 5 (3z - 2) = -16-3 (2z + 5)
15z - 10 = -16 - 6z - 15
21z = -16 -15 + 10
21z = -21
z = -1
8) 8 (2 - x) = 3 (4x + 3) + 87
16 - 8x = 12x + 9 +87
-20x = 80
x = -4
9) 4 (6y - 5) = 5 (2y - 3) + 51
24y - 20 = 10y - 15 + 51
14y = 56
y = 4
10) 5 (7 - 2s) - 4 (3 - 5s) =53
35 - 10s - 12 + 20s = 53
10s = 53 + 12 - 35
10s = 30
s = 3
11) 3 (2z - 1) = 55 - 4(z + 2)
6z - 3 = 55 - 4z - 8
10z = 55 - 8 + 3
10z = 50
z = 5
12) 5 (2 - v) - 2 (2v - 1) - 26 = 0
10 - 5v - 4v + 2 - 26 = 0
-9v = -10 + 26 - 2
-9v = 14
v = [latex]- \frac{14}{9} [/latex]
13) 3 (x - 4) + 7 (2x - 3) = -84
3x - 12 + 14x - 21 = -84
17x = -84 + 12 +21
17x = -51
x = -3
14) 2 (2u + 3) - 4 (3 - 2u) = -6
4u + 6 - 12 + 8u = -6
12u = -6 - 6 + 12
12u = 0
u = 0
Удачи!
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