Question

despeja la incógnita

2x-1=5x+8

2-x = x-8

4x - 3 = 9​

Answer 1

Respuesta:

• 2x - 1 = 5x + 8

2x - 1 = 5x + 8

2x = 5x + 8 + 1

2x = 5x + 9

2x = 14x

x = 14x / 2

x = 7

2x - 1 = 5x + 8

2(7) - 1 = 5x + 8

14 - 1 = 5x + 8

5x = 14 - 1 + 8

5x = 14 - 9

5x = 5

x = 5 / 5

x = 1

2x - 1 = 5x + 8

2(7) - 1 = 5(1) + 8

14 - 1 = 5 + 8

13 = 13

• 2 - x = x - 8

2 - x = x - 8

x = x - 8 - 2

x = 1 - 8 - 2

x = -9

2 - x = x - 8

2 -9 = x - 8

-7 = x - 8

x = - 8 +7

x = -1

2 - x = x - 8

2 -9 = -1 + 8

-7 = -7

• 4x - 3 = 9

4x - 3 = 9

4x = 9 + 3

4x = 12

x = 12 / 4

x = 3

4x - 3 = 9

4(3) - 3 = 9

12 - 3 = 9

9 = 9

Answer 2

Respuesta:

2x - 1 = 5x + 8

Respuesta

2x - 5x = 8 + 1

3x = 9

x = 3

2) 2 - X = x - 8

Respuesta

- X + X = - 8 - 2

X = 10

3). 4X - 3 = 9

Respuesta

4X = 9 + 3.

4X = 12

X= 3

espero haber ayudado , muchas gracias