Question 423895


{{{8x + 4y = 0}}}........1
{{{4x - 2y = 2}}}.......2..multiply by {{{2}}} 

{{{8x + 4y = 0}}}........1
{{{8x - 4y = 4}}}.......2....now subtract from 1
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{{{8x-8x + 4y-(-4y) = 0-4}}}

{{{ 4y-(-4y) = -4}}}

{{{ 4y+4y = -4}}}

{{{ 8y = -4}}}

{{{ y = -4/8}}}


{{{ y = -1/2}}}......now find {{{x}}}

{{{4x - 2(-1/2) = 2}}}

{{{4x - cross(2)(-1/cross(2)) = 2}}}

{{{4x - (-1) = 2}}}

{{{4x +1 = 2}}}

{{{4x = 2-1}}}

{{{4x = 1}}}


{{{x = 1/4}}}