79 Divided by What Equals 9?
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 9?
Solving 79 Divided by What Equals 9
Here’s how you would set up this question as an equation:
79
x
=
9
\frac{79}{x} = 9
x 79 = 9
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
=
9
∗
x
79 = 9*x
79 = 9 ∗ x
Then we can isolate x on the right side of the equation by dividing both sides by 9:
79
9
=
x
\frac{79}{9} = x
9 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
=
8.778
x = 8.778
x = 8.778
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 7 equals 21?
97 divided by what equals 1?
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What is 1/16 divided by 8/20?
What is 5 divided by 4/19?