Add One-seventh + 1One-fifth.
pls hurry

12/35

Step-by-step explanation:

1/7 + 1/5

Find a common denominator:

35

Multiply the top and bottom to get that denominator:

1/7 * 5/5 = 5/35

1/5 * 7/7 = 7/35

Add the numerators:

7+5=12

12/35

hello from mrbilldoesmath!

answer:

x - 3

discussion:

x^2 - 9 = (x-3) (x+3)   so

(x^2-9)/ (x + 3) = x-3

you,

mrb

i believe the answer is d.

hope it you! : d