Question

What is the solution to the system of equations?
x+y=5
x-2y=2
( , )<<<< 10 years ago

Answer 1

By substitution:\[x+y=5 <=> x=5-y\]
Insert it in 2nd equation:
\[(5-y)-2y=2 <=> y=1\]
Insert y in first:
\[x+1=5 <=> x=4\]
You are correct.

Answer 2

Thanks sooo much!!! :)