Question

please help me i don't have much points use eleminaton method all four........

Answer 1

1)
=>x/6-y=-6
=>x-6y=-36....eq1
=>3x/4-y=1
=>3x-4y=4.....eq2
by ellimination
=>(x-6y=-36)3
    (3x-4y=4)1
    -    +     -
        2y=-40
       y=-20
=>x=-36+6y
put the value of y 
x=-156

i hope it may help!