Question

. Решите уравнения:
1) 3x - 15 = x + 3;
2) 7 - 3x = x + 11;
3) 2(x + 3) = x + 13; 5) 3(х-2)=х+4
4) 4(5 - x) = 3х - 1; 6) 5(х-1)=4х+3​

Answer 1

Відповідь:

1) 2x = 18

  x = 9

2) -4x = 4

  x = -1

3) 2x + 6 = x + 13

   x = 7

4) 20 - 4x = 3x - 1

   21 = 7x

   x = 3

5)  3x - 6 = x + 4

   2x = 10

   x = 5

6) 5x -5 = 4x + 3

   x =8

Answer 2

6)5х-5=4х+3

5х-4х=3+5

х=8