79 Divided by What Equals 89?
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 79 by to equal 89?
Solving 79 Divided by What Equals 89
Here’s how you would set up this question as an equation:
79
x
=
89
\frac{79}{x} = 89
x 79 = 89
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 79:
79
=
89
∗
x
79 = 89*x
79 = 89 ∗ x
Then we can isolate x on the right side of the equation by dividing both sides by 89:
79
89
=
x
\frac{79}{89} = x
89 79 = 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
=
0.888
x = 0.888
x = 0.888
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 91 equals 87?
34 divided by what equals 32?
What is 15/18 divided by 2?
What is 8/11 divided by 7/14?
What is 45 divided by 13/4?