What Divided by 21 Equals 58?
Methods
Setting up the problem:
In a problem like this, the “what” means that we’re working with a variable. The most common variable used in math is “x”. So, we could say what number, x, when divided by 21, equals 58?
Solving What Divided by 21 Equals 58
Here’s how you would set up this question as an equation:
x
21
=
58
\frac{x}{21} = 58
21 x = 58
The goal of the problem is to solve for x. To do this we need to change the equation so that x is alone on one side of the equation.In this case, we can do that by multiplying both sides of the equation by 21, resulting in this equation:
x
=
58
∗
21
x = 58*21
x = 58 ∗ 21
Then we simplify and find our answer:
x
=
1218
x = 1218
x = 1218
So, the answer to the question “What divided by 21 equals 58?” is 1218.To prove this, we can take the original problem:
x
21
=
58
\frac{x}{21} = 58
21 x = 58
And insert 1218 in the place of x:
1218
21
=
58
\frac{1218}{21} = 58
21 1218 = 58
Because this is true, the answer must be correct.
Practice Other Division Problems Like This One
If this problem was a little difficult or you want to practice your skills on another one, give it a go on any one of these too!
What divided by 81 equals 12?
96 divided by what equals 54?
What is 11/8 divided by 45?
What is 17/4 divided by 15/16?
What is 39 divided by 10/7?