Question

Write four solution for each of the following equation:
$2x+y=7$

Answer 1

$2x+y=7\Rightarrow y=-2x+7$

Let $x=1\Rightarrow y=5;x=2$

$\Rightarrow y=3;x=3$;

$\Rightarrow y=1x=4$

$\Rightarrow y=-1\Rightarrow (1,5),(2,3),(3,1),(4,-1)$