What Divided by 81 Equals 2?
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 81, equals 2?
Solving What Divided by 81 Equals 2
Here’s how you would set up this question as an equation:
x
81
=
2
\frac{x}{81} = 2
81 x = 2
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 81, resulting in this equation:
x
=
2
∗
81
x = 2*81
x = 2 ∗ 81
Then we simplify and find our answer:
x
=
162
x = 162
x = 162
So, the answer to the question “What divided by 81 equals 2?” is 162.To prove this, we can take the original problem:
x
81
=
2
\frac{x}{81} = 2
81 x = 2
And insert 162 in the place of x:
162
81
=
2
\frac{162}{81} = 2
81 162 = 2
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 98 equals 24?
15 divided by what equals 82?
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What is 14/1 divided by 8/9?
What is 21 divided by 16/3?