7 Divided by What Equals 13?
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 13?
Solving 7 Divided by What Equals 13
Here’s how you would set up this question as an equation:
7
x
=
13
\frac{7}{x} = 13
x 7 = 13
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
=
13
∗
x
7 = 13*x
7 = 13 ∗ x
Then we can isolate x on the right side of the equation by dividing both sides by 13:
7
13
=
x
\frac{7}{13} = x
13 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
=
0.538
x = 0.538
x = 0.538
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 84 equals 40?
16 divided by what equals 14?
What is 10/16 divided by 96?
What is 12/20 divided by 18/8?
What is 28 divided by 14/3?