If 72 is added to a number it will be 4 times as large as it was originally
The phrase a number means an arbitrary variable. Let's call it x.
x
72 added to a number:
x + 72
4 times as large as it was originally means we take the original number x and multiply it by 4:
4x
Now, the phrase it will be means an equation, so we set x + 72 equal to 4x to get our final algebraic expression:
x + 72 = 4x
If the problem asks you to solve for x, we type this equation into our search engine and we get:
x = 24
The phrase a number means an arbitrary variable. Let's call it x.
x
72 added to a number:
x + 72
4 times as large as it was originally means we take the original number x and multiply it by 4:
4x
Now, the phrase it will be means an equation, so we set x + 72 equal to 4x to get our final algebraic expression:
x + 72 = 4x
If the problem asks you to solve for x, we type this equation into our search engine and we get:
x = 24