Question

Solve using the substitution method:
x+y=6
y=2x
Also, please show me how you got your answer so I can better understand how this works.

Answer 1

\[x+y=6\]
\[x=6-y\]
\[y=2(6-y)\]
\[y=12-2y\]
\[3y=12\]
\[y=4\]
\[x=6-4\]

x=2

Answer 2

Thank you for your help fiveever. I know when I look at this in the morning with rested eyes (and a rested brain) it will make sense to me.

Answer 3

glad to help