Question

ayuda es mi última tarea del semestre ayuden porfavor no quiero fallarlo​

Answer 1

Explicación paso a paso:

1. x+17 = 215

x = 215 - 17

x = 198

2. 2x = 242

x = 242/2

x = 121

3. 7x - 15 = 2x + 65

7x - 2x = 65 + 15

5x = 80

x= 80/5

x = 16

4. x + 45 = 55

x = 55+45

x = 100

5. 7x = 896

x = 896/7

x = 128

6. 15x + 10 = 2x + 127

15x - 2x = 127 - 10

13x = 117

x = 117/13

x = 9

7. x - 29 = 400

x = 400 - 29

x = 381

8. x/13 = 12

x = 12*13

x = 156

9. 14x - 11 = 3x + 77

14x - 3x = 77 + 11

11x = 88

x = 88/11

x = 8

10. x - 115 = 520

x = 520 + 115

x = 635

11. x/7 = 127

x = 127*7

x = 889

12. 9x - 5 = 5x + 55

9x - 5x = 55 + 5

4x = 60

x = 60/4

x = 15

13. 3x + 11 = 2x - 3

3x - 2x = -3 - 11

x= -14

14. 5x - 42 = 3x + 48

5x - 3x = 48 + 42

2x = 90

x = 90/2

x = 45

15. 28x + 30 = 20x - 50

28x - 20x = -50 - 30

8x = -80

x = -80/8

x = -10