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
