Posted by **Emma** on Sunday, January 6, 2013 at 5:52pm.

Use the substitution method to solve the linear system. Thanks!

s= t+4

2t+s=19

- algebra -
**Ms. Sue**, Sunday, January 6, 2013 at 5:56pm
s= t+4

2t+s=19

2t + t + 4 = 19

3t = 15

t = 5

s = 5 + 4

s = 9

- algebra -
**Emma**, Sunday, January 6, 2013 at 6:18pm
I have another question.

So I solved the problem but then I have to put it in an ordered pair form. If I was using the variables "x and y," then it would be (x,y) but what if I were using different variables, in this case s and t, how do I know which one is the x and which one would be the y?

- algebra -
**Ms. Sue**, Sunday, January 6, 2013 at 6:23pm
I don't know. Please post your last question as a new question.

- algebra -
**Damon**, Sunday, January 6, 2013 at 6:44pm
since you started out with s = t+4

I bet you want to use s for y and t for x

However there is no way for me to tell from what you wrote which is the dependent variable y and which is the independent variable x

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