Question 316611
1.{{{2x+2y=4}}}
{{{x+y=2}}}
.
.
.
2.{{{3x+3y=6}}}
{{{x+y=2}}}
These are the same line. 
There are an infinite number of solutions.
Any point that solves {{{x+y=2}}} also solves eq. 1 and eq. 2.