Question 1177921


{{{y=2-3x}}}
{{{6x+2y=7}}}
--------------------since first equation is already solved for {{{y}}}, use substitution method

{{{6x+2y=7}}}........substitute {{{y}}}

{{{6x+2(2-3x)=7}}}

{{{6x+4-6x=7}}}

{{{4=7}}}-> is false, therefore the system of equations has no solution 

lines are parallel