Solve using the elimination method.

Question

6x-y=39

 

5x+y=39

 

 

a) The Solutions of them system is __.(Type in order paired)

b) there are infinitely many solutions

c) there is no solution. 

Answer 1

Hi Hunter,

 

6x -y =39....eqn1

5x +y =39.....eqn 2

 

adding eqn 1 & 2, we get,

 

11x =78

 

x = 78/11

 

substituting then value of x= 78/11 in eqn 1, we get,

 

6(78/11) -y = 39

 

y  =468/11 -39

y = 468-429/11 = 39/11

 

solution is (78/11,39/11)