What Divided by 2 Equals 86?
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 2, equals 86?
Solving What Divided by 2 Equals 86
Here’s how you would set up this question as an equation:
x
2
=
86
\frac{x}{2} = 86
2 x = 86
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 2, resulting in this equation:
x
=
86
∗
2
x = 86*2
x = 86 ∗ 2
Then we simplify and find our answer:
x
=
172
x = 172
x = 172
So, the answer to the question “What divided by 2 equals 86?” is 172.To prove this, we can take the original problem:
x
2
=
86
\frac{x}{2} = 86
2 x = 86
And insert 172 in the place of x:
172
2
=
86
\frac{172}{2} = 86
2 172 = 86
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!
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37 divided by what equals 10?
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What is 27 divided by 16/15?