Question

1. 3x – (x + 2) = 5 – [2x – (3x + 1)] 2. (5 – 3x) – (6x – 12) = (3 + x) + (4x – 14) 3. 3 – (x + 1) = 2 (x + 2) – 3 (3 – x) porfavor urgente :( , doy 20 puntos

Answer 1

Explicación paso a paso:

1. 3x – (x + 2) = 5 – [2x – (3x + 1)]

3x - x - 2 = 5-(2x - 3x - 1)

2x - 2 = 5 - 2x + 3x + 1

2x - 2 = 6 + X

2x - x = 6 + 2

X = 8

2. (5 – 3x) – (6x – 12) = (3 + x) + (4x – 14)

5 - 3x - 6x + 12 = 3 + x + 4x - 14

17 - 9x = 5x - 11

17 + 11 = 5x + 9x

28 = 14x

28/14=x

x = 2

3. 3 – (x + 1) = 2 (x + 2) – 3 (3 – x)

3 - x - 1 = 2x + 4 - 9 + 3x

2 - x = 5x - 5

2 + 5 = 5x + x

7 = 6x

x = 7/6