Respuesta :

trinityy30
2x+9=21 Answer: x=6
4x-25=11 Answer x=9
8x+13=45 Answer x=4

Solution:

  1. 2x + 9 = 21
  • or, 2x = 21 - 9
  • or, 2x = 12
  • or, x = 12 ÷ 2
  • or, x = 6

2. 4x - 25 = 11

  • or, 4x = 11 + 25
  • or, 4x = 36
  • or, x = 36 ÷ 4
  • or, x = 9

3. 8x + 13 = 45

  • or, 8x = 45 - 13
  • or, 8x = 32
  • or, x = 32 ÷ 8
  • or, x = 4

Answers:

  1. 6
  2. 9
  3. 4

Hope it helps.

Do comment if you have any query.