Question

{5m + 2n = 13
m + 3n = 6
Método de sustitución

Answer 1

M=6-3n

5(6-3n)+2n=13
30-15n+2n=13
-15n+2n=13-30
-13n=-17
N=-17/-13
N=17/13

M=6-3n
M=6-3(17/13)
M=6-51/13
M=78/13-51/13
M=27/13