Answer:
3 terriers
Step-by-step explanation:
5 times 3 equals 15, there are 3 terriers, because then if we add 3 to 15, we get 18!
So here we have 2 equations:
2|x+1| - 1 = 11 and 2y - 1 = 11
Well, if you compare these two equations, you can notice that the |x+1| have been substituted by the variable y. So the student considered that y = |x+1|.
Hope this helps! :)
Answer:
5.6
Step-by-step explanation:
