Question

what number should be subtracted from-3/9to get-4

Answer 1

its simple(-3/9)-x=-4x=4-(3/9)=33/9=11/3

Answer 2

-3/9-x = -4
       -x= -4 -3/9
       -x= -36-3/9
       -x=-39/9
       -x=-13
    -1*x= -13
        x= -13/-1
        x=13