Solve each equation. check your solution. 8 less than a number is 15. find the number.

x-8=15

When it says 8 less than that means that you are subtracting 8 from you're equation. The question also states from a number means that the 8 will be behind the variable and subtracted. They also give you the original answer before finding x. So to solve for "x" you have to isolate it. To isolate it you would add 8 from the left hand side (leaving x) and then add 8 to 15 on the right hand side. That would then give you youre answer of

x=23.

Hope it helps!

Let the number we have to find be x, Then:-

x - 8 = 15

x - 8 + 8 = 15 + 8

x = 23 answer

idk

step-by-step explanation:

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.