What is the sum of the fractions? Use the number line to help find the answer.

3/5 plus -7/5

The answer is -4/5

Step-by-step explanation:

Hope this helps!:)

I am not positive i did this a while ago but i think you subtract r^2 on both sides getting 18r+73=-9(r^2)
Then you can divide 18 from 18r getting r+73=-9(r^2) (divided by symbol) 18
Then you subtract 73 and u get R=-9(r^2)
+73
18

Sorry if thats totally wrong but thats all I remember