Question 665824

{{{5x+y=22}}}.....1
{{{4x-4y=8}}}......2
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{{{5x+y=22}}}.....1..solve for {{{y}}}

{{{y=-5x+22}}}...plug it in 2


{{{4x-4(-5x+22)=8}}}......2.solve for {{{x}}}

{{{4x+20x-88=8}}}

{{{24x=8+88}}}

{{{24x=96}}}

{{{x=96/24}}}

{{{highlight(x=4)}}}


now find  {{{y}}}

{{{y=-5x+22}}}

{{{y=-5*4+22}}}

{{{y=-20+22}}}

{{{highlight(y=2)}}}