9x-30 I’m pretty sure!
We are finding the difference, which means subtract! Nine times a number would be 9x and since it’s difference you would subtract it by 30.
Answer:
3
Step-by-step explanation:
2 -3 = -1 + 4 = 3
To solve this we can make it into an equation, which looks like this
y = 2x (for Rebecca)
y = x + 10 (for Alice)
The we subtract one equation from the other to solve
0 = x - 10
10 = x
x = 10
Now we replace x in whichever equation and we get 20
So, each girl will read 20 books for them to be at the same book.
Hope this helps, remember that Jesus loves you
In the 8th row there’s a Q and if u go sideways down it’s quadrilateral if u need more lmk!
The answer is n+7 and 7+n
