A number increased by 21 is 28. Find the number
Let's take this number as 'x'.
Now, increasing a number by 21 means adding 21 to it.
So, the question tells us that:
x + 21 = 28
Subtract 21 from both sides:
x = 28 - 21
=> x = 7
Now, increasing a number by 21 means adding 21 to it.
So, the question tells us that:
x + 21 = 28
Subtract 21 from both sides:
x = 28 - 21
=> x = 7