Question 416415


Solve 

{{{3x+y=-3}}} ........1 

{{{y=x+5 }}}..........2
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{{{3x+y=-3}}} ........1 ...solve for {{{y}}}

{{{y=-3x-3}}} .......substitute in 2 and solve for {{{x}}}

{{{-3x-3=x+5 }}}..........2

{{{-3-5=3x+x }}}

{{{-8=4x }}}

{{{-8/4=x }}}

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

{{{y=-3x-3}}} 

{{{y=-3(-2)-3}}} 

{{{y=6-3}}} 

{{{y=3}}} 

answer is:

A)( -2,3)