What is 13 minus 7 1/2 as a fraction on av number line pronto!

So 13- 7 and 1/2

I can't draw a number line here but I'll try to help

so 13 (count 13 lines to the right (positive) and put a dot there to mark that)

then -7 and 1/2

so from the 13 point, move 7 and 1/2 spaces to the left (negative) and get the dot at 5 and 1/2

X=y+4 is the answe