Question

1) 2x - 1 = 5x + 8*

2) 3(x-7) = 5(x-1) - 4x*

3) 13 - (x+5) = 4x - (6x-5)*

4) 2(3x-1)-x = 2 - 3(x-4)*

son ecuaciones por fa ayuda​​

Answer 1

Respuesta:

1. -3=x

2. x=8

3. x=-3

4. x=1

Explicación paso a paso:

1. 2x - 1 = 5x + 8

- 1 - 8 = 5x - 2x

-9 = 3x

-3 = x

2. 3(x - 7) = 5(x - 1) - 4x

3x - 21 = 5x - 5 - 4x

3x + 4x - 5x = 21 - 5

2x = 16

x = 8

3. 13 - (x + 5) = 4x - (6x - 5)

13 - x - 5 = 4x - 6x + 5

8 - x = -2x + 5

x = -3

4. 2(3x - 1) - x = 2 - 3(x - 4)

6x - 2 - x = 2 - 3x + 4

5x -2 = -3x + 6

8x = 8

x = 1