Eighty decreased by three times a number is the same as five times the number increased by eight find the number

We want to find and solve an equation by following a given statement.

We will see that the number is 9.

Now let's see how we got that.

The statement says:

"Eighty decreased by three times a number is the same as five times the number increased by eight"

if we define x as "the number" then we can write:

80 - 3*x = 5*x + 8

We found the equation, now is time to solve it, remember that it means isolating x in one side of the equation:

80 - 3*x = 5*x + 8

80 - 8 = 5*x + 3*x

72 = 8*x

72/8 = x

9 = x

Then the number we wanted to find is 9.

If you want to learn more, you can read:

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introduction, methodology, results, discussion

step-by-step explanation:

an observational study is one which consists of actual observation to record data and then analyse the data.

there are a number of factors that should be analyzed before starting an observational study.

the main four factors are:

i) introduction:   this should be analysed to check whether the purpose of the study is correctly established and the data recorded are appropriate for the study

methodology:   the method of collecting the data, such as whether randomly selected, and whether sample size matches with the population to be studied, whether questions asked are easy to answer by common men, etc.

results: then results such as summary of data with comments should be studied thoroughly

discussion:   the last is the discussion, this can be either by management people or persons who are all interested , etc.

answer: 5100 just subtract

step-by-step explanation: