What Divided by 7 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, when divided by 7, equals 89?
Solving What Divided by 7 Equals 89
Here’s how you would set up this question as an equation:
x
7
=
89
\frac{x}{7} = 89
7 x = 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, we can do that by multiplying both sides of the equation by 7, resulting in this equation:
x
=
89
∗
7
x = 89*7
x = 89 ∗ 7
Then we simplify and find our answer:
x
=
623
x = 623
x = 623
So, the answer to the question “What divided by 7 equals 89?” is 623.To prove this, we can take the original problem:
x
7
=
89
\frac{x}{7} = 89
7 x = 89
And insert 623 in the place of x:
623
7
=
89
\frac{623}{7} = 89
7 623 = 89
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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27 divided by what equals 4?
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