Question 673488
{{{3x+y=5}}}
{{{2x-y=0}}} add these two equations
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{{{5x = 5}}}
{{{x=1}}}
if x = 1, then solve for y
{{{3x +y = 5}}} 
{{{3*1 + y = 5}}}
{{{3 + y = 5}}}
{{{y = 2}}}