Question

Решите 839 аьамура 6 класс пожалуйста​

Answer 1

Ответ:

1) 3х - х = 15 + 3

2х = 18

х = 9

2)-4х = 4

х = -1

3)2x - x = 13-6

х =7

4)-7х = -21

x = 3

5)2x =10

x = 5

6) x = 8

Answer 2

$1)3x - 15 = x + 3 \\ 2x = 18 \\ x = 9 \\ 2)7 - 3x = x + 11 \\ - 4x = 4 \\ x = - 1 \\ 3)2(x + 3) = x + 13 \\ 2x + 6 = x + 13 \\ x = 7 \\ 4)4(5 - x) = 3x - 1 \\ 20 - 4x = 3x - 1 \\ - 7x = - 21 \\ x = 3 \\ 5)3(x - 2) = x + 4 \\ 3x - 6 = x + 4 \\ 2x = 10 \\ x = 5 \\ 6)5(x - 1) = 4x + 3 \\ 5x - 5 = 4x + 3 \\ x = 8$