Question

Resolver las siguientes ecuaciones:

1. x + 5 = 13
2. x + 4 = 22 – x
3. 2x + 3 = x – 11
4. 19 – x = 2x + 1

Answer 1

x + 5 = 13 ↓↓

$x + 5 = 13 \\ x = 13 - 5 \\ x = 8$

EL VALOR DE X ES 8

x + 4 = 22 – x ↓↓

$x + 4 = 22 – x \\ x + x = 22 - 4 \\ 2x = 18 \\ \frac{2x}{2} = \frac{18}{2} \\ x = 9$

EL VALOR DE "X" ES 9

2x + 3 = x – 11 ↓↓↓

$2x + 3 = x – 11 \\ 2x - x = - 11 - 3 \\ x = - 14$

EL VALOR DE "X" ES -14

19 – x = 2x + 1 ↓↓

$19 – x = 2x + 1 \\ 19 - 1 = 2x + x \\ 18 = 3x \\ \frac{18}{3} = \frac{3x}{3} \\ 6 = x$

EL VALOR DE "X" ES 6