Respuesta :
[tex]a + b = 42 \\ \frac{2}{3} a = \frac{b}{2} [/tex]
[tex]a = 42 - b[/tex]
[tex] \frac{84 - 2b}{3} = \frac{b}{2} \\ 168 - 4b = 3b \\ 168 = 7b \\ 24 = b[/tex]
[tex]a + b = 42 \\ a + 28 = 42 \\ a = 14[/tex]
[tex]a + b = 42 \\ \frac{2}{3} a = \frac{b}{2} [/tex]
[tex]a = 42 - b[/tex]
[tex] \frac{84 - 2b}{3} = \frac{b}{2} \\ 168 - 4b = 3b \\ 168 = 7b \\ 24 = b[/tex]
[tex]a + b = 42 \\ a + 28 = 42 \\ a = 14[/tex]