Question

Solve using either Elimination or Substitution. Want to check against my answer.
y=1/2x -6
2x+6y =19

Answer 1

x=11
y=-1/2
substitution elimination

Answer 2

It cannot be solve by elimination because it is dependent.

Answer 3

I like using elimination because it is much faster.
just write everything in the form of x+y=c
where c is a constant such as 2 and then use elimination.

Answer 4

I'll set this up for you
\[2x+6y =19\]
\[1/2 x-y=6\]
Now, what can you do to \[1/2 x\] to make it look like \[2x\]?
Because the point of elimination, is that either the x cancel each other or the y cancel each other.

Answer 5

@beeqay, Thanks for your help, I appreciate it but recheck, isn't Substitution the better way of solving it?

Answer 6

It totally depends on personal opinion, if you feel that it is easier for you then it is.
I personally think elimination is easier, if you multiply the equation with \[1/2 x\] by 6 then you will have 3x-6y=36.
So now you can solve this by elimination easily since the 6y cancels out with the 6y in the other equation. and you have 5x=55.