ответ: это много /\/\атем
Пошаговое объяснение:(4,5 / 1/5 - 5/8 / 0,75) * 2,3 - 3 2/3 * 2,3 = 41 2/5.
4,5 = 4 5/10 = (4 * 10 + 5)/10 = 45/10 на 5 = 9/2.
0,75 = 75/100 на 25 = 3/4.
2,3 = 2 3/10 = (2 * 10 + 3)/10 = 23/10.
3 2/3 = (3 * 3 + 2)/3 = 11/3.
2,3 = 2 3/10 = (2 * 10 + 3)/10 = 23/10.
1. 9/2 / 1/5 = (9 * 5)/(2 * 1) = 45/2.
2. 5/8 / 3/4 = (5 * 4)/(8 * 3) = 20/24 на 4 = 5/6.
3. 45/2 - 5/6 = (135 - 5)/6 = 130/6 на 2 = 65/3.
4. 65/3 * 23/10 = (65 * 23)/(3 * 10) = 1495/30 на 5 = 299/6.
5. 11/3 * 23/10 = (11 * 23)/(3 * 10) = 253/30.
6. 299/6 - 253/30 = (1495 - 253)/30 = 1242/30 на 6 = 207/5 = 41 2/5 или 41,4.
1) x = 4
2) x = 3
3) x = -1/4
4) x = 6
5) x = -2/5
6) x = -4
7) x = 1/5
8) x = -9/10
9) x = 6 1/2
10) x = 1
11) x = 5
12) x = 2
13) x = 36
14) x = 5
15) x = 3
Пошаговое объяснение:
1) 6х - 24 = 0
6x = 24
x = 24/6
x = 4
2) 5х - 9 = 6
5x = 6 + 9
5x = 15
x = 15/5
x = 3
3) 10х + 1 = 6х
10x - 6x = -1
4x = -1
x = -1/4
4) 9х + 6 = 10х
9x - 10x = -6
-x = -6
x = 6
5) 6х = х - 2
6x - x = -2
5x = -2
x = -2/5
6) 9х - 4 = 10х
9x - 10x = 4
-x = 4
x = -4
7) 5х - 3 = - 10х
5x + 10x = 3
15x = 3
x = 3/15
x = 1/5
8) х + 9 = - 9х
x + 9x = -9
10x = -9
x = -9/10
9) 2х - 7 =6
2x = 6 + 7
2x = 13
x = 13/2
x = 6 1/2
10) 2x + 6 = 8
2x = 8 - 6
2x = 2
x = 2/2
x = 1
11) 5х - 12 = 13
5x = 13 + 12
5x = 25
x = 25/5
x = 5
12) 8х + 14 = 30
8x = 30 - 14
8x = 16
x = 16/8
x = 2
13) х + 36 = 72
x = 72 - 36
x = 36
14) 12х - 43 = 17
12x = 17 + 43
12x = 60
x = 60/12
x = 5
15) - 3х + 9 = 0
- 3x = - 9
x = -9/-3
x = 3
х=1,3
Пошаговое объяснение:
4,5x-3,17=2,68
4,5x=3,17+2,68
4,5x=5,85
х=5,85:4,5
х=1,3