Question

Si 5x + 7 = (m + n)x+ 2m - 1; calcula el valor <m - n>> con formyula para ahoraaaaa​

Answer 1

Respuesta:

$5x + 7 = (m + n)x + 2m - 1 \\ 7 = 2m - 1 \\ 8 = 2m \\ 4 = m \\ 5x = (m + n)x \\ 5 = m + n \\ 5 = 4 + n \\ 1 = n \\ rpta = m - n = 4 - 1 = 3$