How do I solve this?

Question

I am in 8th grade math and I have such a hard time with these questions: The sum of three numbers equals 100. The second number is 8 less than the first. The third is 4 times the first. What are the numbers?

Answer 1

Suggestion: look through your textbook, reading carefully how problems of this type are approached.

It always begins by something such as

Let f be the first number; then the second number has to be f-8, etc.

 

Also, MANY problems of this kind have been addressed, with great frequency, in this platform, so browse through WyzAnt Resources/Answers if you like.