6 weeks until she reaches 60 kilo
Not exactly sure but I think it's 74.2
71 is the answer. If you round it, it would be 70.
Answer:

Step-by-step explanation:

For the y to cancel out, you would have to divide y by 5. Whenever you do one thing to a side, you <u><em>have</em></u> to do the same on the other side. Once you do so, you'll get : 
<em>Hope this helps!!</em>