The answer is -8 I believe.
To put this into an equation, we get 7x-x=-48. This is equal to 6x=-48. When we divide we get -8.
Eighths and their multiples are common fractions which I recommend memorizing, but to actually solve this, you use the literal meaning of a fraction and divide 5 by 8. See the long-division below (it was surprisingly difficult to type, so I hope it helps!).
To round 0.625 to the nearest hundredth, we go to the second decimal place, which is 5, so we round up to 0.63.
For this case what you should do is follow the following steps:
1) factorize numerator and denominator of both expressions.
2) cancel similar terms
3) add both fractions by cross product
4) Rewrite the numerator and denominator.
Answer:
See attached image.
Step-by-step explanation:






p=3, q=-11
137,638
+52,091
-------
189,729 ⇨ 189,730