Solve, using the substitution method.

j + k = 3

j – k = 7

A.

The solution is (8, 1)

B.

The solution is (5, –2)

C.

There is no solution.

D.
There are an infinite number of solutions.

Question

Solve, using the substitution method.
 

j + k = 3

j – k = 7
	
	
 
A.
	

The solution is (8, 1)
	
 
B.
	

The solution is (5, –2)
	
 
C.
	

There is no solution.
	
 
D.
	There are an infinite number of solutions.

anonymous · Answer

You have j+k=3 and j-k=7, if you change one of the equations so it is equal to one of the missing numbers then you can substitute it into the other equation to solve it. I suggest taking the second equation and adding k to both sides and solving for j.

anonymous · Answer

Sorry, your solving for k not j.

anonymous · Answer

its ok