Respuesta :
Answer:
U= 28
Step by step solution
add 23 to both sides
U-23+23=5+23
hence
U=28
Answer:
Full question?? Solve for 47 – u, when u = 23
If that is the question you are asking the answer is 24
Step-by-step explanation:
Any letter may be used as a variable (or unknown number). In this case, it's lowercase "u." So simply plug the number in for the variable and you get 47 – 23 = 24.