Question

2x + 4 = 5
Y - 11 =3x​

Answer 1

Explicación paso a paso:

$2x + 4 = 5 \\ 2x = 5 - 4 \\ 2x = 1 \\ x = \frac{1}{2}$

$y - 11 = 3x \\ y - 11 = 3 \times \frac{1}{2} \\ y - 11 = \frac{3}{2} \\ y = \frac{3}{2} + 11 \\ y = \frac{3}{2} + \frac{22}{2} = \frac{25}{2}$

$2x + 4 = 5 \\ 2 \times \frac{1}{2} + 4 = \frac{2}{2} + \frac{8}{2} = \frac{10}{2} = 5$

si x=1/2 , 3x=3/2