Question

ecuaciones con igualdades por favor ayudenmen a resolverla

Answer 1

Respuesta:

1. x = 3

2. x = 1

3. x = -4,5

4. x = -3/7

5. x = -1

Explicación paso a paso:

Ejercicio 1

x - (2x + 1) = 8 - (3x + 3)

x - 2x - 1 = 8 - 3x - 3

- x - 1 = 5 - 3x

- x + 3x = 5 + 1

2x = 6

x = 6/2

x = 3

Ejercicio 2

15x - 10 = 6x - (x + 2) + (-x + 3)

15x - 10 = 6x - x - 2 - x + 3

15x - 10 = 4x + 1

15x - 4x = 1 + 10

11x = 11

x = 11/11

x = 1

Ejercicio 3

(5 - 3x) - (-4x + 6) = (8x + 11) - (3x - 6)

5 - 3x + 4x - 6 = 8x + 11 - 3x + 6

- 1 + x = 5x + 17

- 1 - 17 = 5x - x

-18 = 4x

-18/4 = x

-9/2 = x

x = -9/2 = -4,5

Ejercicio 4

30x - (-x + 6) + (-5x + 4) = -(5x + 6) + (-8 + 3x)

30x + x - 6 - 5x + 4 = - 5x - 6 - 8 + 3x

26x - 2 = - 2x - 14

26x + 2x = - 14 + 2

28x = -12

x = -12/28

x = -6/14

x = -3/7

Ejercicio 5

15x + (-6x + 5) - 2 - (-x + 3) = -(7x + 23) - x + (3 - 2x)

15x - 6x + 5 - 2 + x - 3 = - 7x - 23 - x + 3 - 2x

10x + 0 = - 10x - 20

10x = - 10x - 20

10x + 10x = -20

20x = -20

x = -20/20

x = -1