Question 368523
 1.{{{6x-y=33}}}
2.{{{6x+3y=45}}}
Subtract eq. 1 from eq. 2,
{{{6x+3y-6x+y=45-33}}}
{{{4y=12}}}
{{{highlight(y=3)}}}
Then from eq. 1,
{{{6x-3=33}}}
{{{6x=36}}}
{{{highlight(x=6)}}}
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{{{drawing(300,300,-2,8,-2,8,grid(1),circle(6,3,0.2),graph(300,300,-2,8,-2,8,0,6x-33,(45-6x)/3))}}}