Answer:
0 solutions
Step-by-step explanation:
2n + 4 = 4n + 1 - 2n
↑
first combine like terms (right side)
2n + 4 = 2n + 1
but this part you can tell that there's 0 solutions, because both sides have 2n/ same variable with same number.
Answer: 
Step-by-step explanation:

Answer:
Equation: 4 1/4 + 1 3/4
Evaluation: 5 3/4
Step-by-step explanation:
So, Nora jobs 4 1/4 miles on Monday, which is 1 1/2 miles fewer than on Tuesday.
If this was 1.5 fewer miles, we need to add 1 1/2 and 4 1/4 to get our answer
We change the denominator on 1 1/2 to be 4. So, we multiply both sides by 2 and get 1 2/4
4 1/4 + 1 2/4 = 5 3/4