Answer:
x = 15
Step-by-step explanation:
=> x - 3 = 12
=> x = 15
Answer:
40
Step-by-step explanation:
2+2 = 4
4+4 = 8
8+32= 40
It is not correct because of the order the problem is organized in.
Answer:
11+12+13+14=50
Step-by-step explanation:
Just estimate. We know that 15 times 4 = 60, so it has to be less than that. We know that 10 times 4 is 40, so it has to be in that range. Just do trial and error to find the exact answer. I'm editing this now and I realized that I didn't answer the question. I don't know how to write the equation using N but the first integer is 11.