7 Divided by What Equals 87?
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 can we divide 7 by to equal 87?
Solving 7 Divided by What Equals 87
Here’s how you would set up this question as an equation:
7
x
=
87
\frac{7}{x} = 87
x 7 = 87
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, it can be done in two steps. The first step is to multiply both sides by x to isolate 7:
7
=
87
∗
x
7 = 87*x
7 = 87 ∗ x
Then we can isolate x on the right side of the equation by dividing both sides by 87:
7
87
=
x
\frac{7}{87} = x
87 7 = x
When we simplify the new equation, we can solve for x. In this example, we will round to the nearest three decimal places if that’s needed.
x
=
0.080
x = 0.080
x = 0.080
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 62 equals 53?
82 divided by what equals 83?
What is 1/17 divided by 32?
What is 14/5 divided by 13/9?
What is 72 divided by 11/19?