Question 194757
{{{(3x-y)2=(-1)2}}}
{{{4x+2y=22}}}

{{{2(3x-y)=-2}}}
{{{4x+2y=22}}}

{{{2*3x-2y=-2}}}
{{{4x+2y=22}}}

{{{6x-2y=-2}}}
{{{4x+2y=22}}}

{{{6x-2y=-2}}}
{{{(4x+2y)+(6x-2y)=22-2}}}

{{{6x-2y=-2}}}
{{{4x+2y+6x-2y=20}}}

{{{6x-2y=-2}}}
{{{10x=20}}}

{{{6x-2y=-2}}}
{{{10x/10=20/10}}}

{{{6x-2y=-2}}}
{{{x=2^(2-1)}}}

{{{6x-2y=-2}}}
{{{x=2}}}

{{{6*2-2y=-2}}}

{{{12-2y=-2}}}

{{{-2y+12=-2}}}

{{{-2y=-14}}}

{{{2y/2=14/2}}}

{{{y=7}}}
{{{x=2}}}