Question

{6m+n=-5
{6m-7n=5

s={(5/6,0)}

Answer 1

n = -5-6m

6m-7n=5
6m-7(-5-6m)=5
6m+35+42m=5
6m+42m=5-35
48m= -30
m= -30/48 (:6)
m = -30:6/48:6
m= -5/6

n= -5-6m
n= -5-6.(-5/6)
n= -5+30/6
n= -5+5
n= 0

S = (-5/6, 0)