1. I am thinking if a number. It is increased by 7. The sum is 21. What is my number?
A n=28
B n=14<----------------------
C n=7
D n=147 please check!
do 21 minus 7 and that will be your answer
N = 14
oh ok thx
Prancer I am making you a student helper but first post random answers on all questions
To solve this problem, we can set up an equation to represent the given information.
Let's assume the number you are thinking of is "n".
The problem states that the number is increased by 7, so the equation is:
n + 7 = 21
To find the value of "n", we need to isolate it on one side of the equation. We can do this by subtracting 7 from both sides of the equation:
n + 7 - 7 = 21 - 7
n = 14
Therefore, the correct answer is B) n = 14.