What Divided by 51 Equals 78?

Accepted Solution

What Divided by 51 Equals 78?MethodsSetting 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 51, equals 78?Solving What Divided by 51 Equals 78Here’s how you would set up this question as an equation:x51=78\frac{x}{51} = 7851x​=78The 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 51, resulting in this equation:x=78∗51x = 78*51x=78∗51Then we simplify and find our answer:x=3978x = 3978x=3978So, the answer to the question “What divided by 51 equals 78?” is 3978.To prove this, we can take the original problem:x51=78\frac{x}{51} = 7851x​=78And insert 3978 in the place of x:397851=78\frac{3978}{51} = 78513978​=78Because this is true, the answer must be correct.Practice Other Division Problems Like This OneIf 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 13 equals 39?38 divided by what equals 76?What is 17/12 divided by 66?What is 4/3 divided by 10/19?What is 26 divided by 2/20?