Question

se o par ordenado (m,3m) e a solucao da equacao 2x + 5y=17, entao m e igual a ?

Answer 1

(x,y) = (m,3m)

2x+5y = 17
2.m+5.(3m) = 17
2m+15m= 17
17m= 17
m = 17/17
m= 1