If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the second equation is substituted into the first equation.

2x – 3y = –29
x + 4y = 13

Question

If you were to use the substitution method to solve the following system, choose the new equation after the expression equivalent to x from the second equation is substituted into the first equation.

2x – 3y = –29
x + 4y = 13

vera_ewing · Answer

@amistre64 Can you check my answer? I think it's A. 2(4y + 13) – 3y = –29

vera_ewing · Answer

@tkhunny Is my answer correct?

tkhunny · Answer

No, sorry.

x + 4y = 13  ==>  x = 13 - 4y

vera_ewing · Answer

2(–4y + 13) – 3y = –29
 would that be the answer? @tkhunny

tkhunny · Answer

You tell me.  Did you substitute correctly?  If so, then that is correct.

vera_ewing · Answer

I'm not sure if I did it right. can you just check to make sure you got the same thing as me?

tkhunny · Answer

There isn't anything else to do or to check.  You're done.  Why do you doubt?

vera_ewing · Answer

I just want to get it right. Did you get the same answer as me?

tkhunny · Answer

Asked and answered.  Move on to the next one.