7x/8 = 21

i am kind of confused on this

I did 21 divided by 8 = 2.625

but how do you know how to get it?

To solve the equation 7x/8 = 21, you can follow these steps:

Step 1: Start by multiplying both sides of the equation by 8 to eliminate the fraction:
(8)(7x/8) = (8)(21)
7x = 168

Step 2: Divide both sides of the equation by 7 to isolate the variable x:
(7x)/7 = 168/7
x = 24

Therefore, the solution to the equation 7x/8 = 21 is x = 24.

7x/8 = 21

7x = 168
x = 24

or,

7(x/8) = 21
x/8 = 3
x = 24

If you divided 21 by 8, you were just guessing.