Question

The sum of three numbers is 89 The second number is 6 times the first. The third number is 15 less than the second. What is the first number?

Answer 1

Answer:

You are told that x+y+z=89, that y = 6x and that z = y-15 = 6x-15. Substituting the second and third equations into the first, we have x + 6x + 6x -15 = 89. That yields 13x - 15 =89. Adding 15 to both sides yields 13x = 104.

I guess this will help you

Answer 2

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