Solve the following system.
y = x + 4

5x + y = 16

a. (2, -6)
b. (-2, 6)
c. (6, 2)
d. (2, 6)

Question

Solve the following system.
y = x + 4

5x + y = 16


a. (2, -6)
b. (-2, 6)
c. (6, 2)
d. (2, 6)

anonymous · Answer

Does the method matter?

anonymous · Answer

I dont thinks so

anonymous · Answer

Well we can do substitution since it's already set up for that, take y = x+4 and substitute it into the second equation 5x+y=16. 

Post it here, once you've done it :)

anonymous · Answer

im having a really hard time figuring out how to do it, im looking in my notes and its still not clicking. sorry, ive always been horrible with math

anonymous · Answer

No worries, I'll show you and you can tell me if you understand it. 

|dw:1405280498763:dw|

First step, does that make sense? 

It's just some algebra from there, you just need to solve for x now, can you try that?