Question 1191737
{{{8x + 64= 8y}}}......... 1) 
{{{-4x +4y = 32}}}....... 2)....both sides multiply by {{{2}}}
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{{{8x + 64= 8y}}}......... 1), isolate {{{x}}} 

{{{8x= 8y-64}}}.........simplify, both sides divide by {{{8}}}

{{{x= y-8}}}........1a)


{{{-4x +4y = 32}}}....... 2), substitute {{{x}}}

{{{-4(y-8)+4y = 32}}}

{{{-4y+32+4y = 32}}}

{{{32= 32}}}


=> solution to the system is {{{x= y-8}}}