Question 1010610


(1)
{{{x=-2y+1}}} 
{{{x=y-5 }}}
--------------------

{{{x+2y=1}}} 
{{{x-y=-5 }}}

*[invoke solving_linear_system_by_substitution 1, 2, 1, 1, -1, -5] 

(2) 

{{{y=x-7}}}
{{{2x+y=8}}} 
-------------------
{{{-x+y=-7}}}
{{{2x+y=8}}}

*[invoke solving_linear_system_by_substitution -1, 1, -7, 2, 1, 8]


(3)
{{{3x+y=10}}}
{{{y=-3x+4}}}
------------------------- 
{{{3x+y=10}}}
{{{3x+y=4}}}

*[invoke solving_linear_system_by_substitution 3, 1, 10, 3, 1, 4]

(4)
{{{4x+2y=8}}}
{{{y=-2x+4}}}
-------------------------
{{{4x+2y=8}}}
{{{2x+y=4}}}

*[invoke solving_linear_system_by_substitution 4, 2, 8, 2, 1, 4] 


(5)
{{{5x-3y=-4}}}
{{{x+y=-4 }}}
---------------------------

*[invoke solving_linear_system_by_substitution 5, -3, -4, 1, 1, -4]