Question 554062
{{{4x-3y=-5}}}.........(1)
{{{2x-y=-7}}}..........(2)
Multiply (1) by 2 and (2) by 4
{{{8x-6y=-10}}}.........(3)
{{{8x-4y=-28}}}.........(4)
Subtract (4) from (3)
{{{8x-6y=-10}}}
{{{-8x+4y=+28}}}
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{{{-2y=18}}}
Divide by -2 both sides of above equation
{{{-2y/-2=18/-2}}}
{{{y=-9}}}
Put the value of y in (1)
{{{4x-3y=-5}}}.........(1)
{{{4x-3(-9)=-5}}}
{{{4x+27=-5}}}
{{{4x=-5-27}}}
{{{4x=-32}}}
{{{4x/4=-32/4}}}
{{{x=-8}}}

x,y=-8, -9


Check
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Put the value of x and y in (2)
{{{2x-y=-7}}}..........(2)
{{{2(-8)-(-9)=-7}}}
{{{-16+9=-7}}}
{{{-7=-7}}}