SOLUTION: WHEN FOUR IS ADDED TO A NUMBER AND THE SUM IS DIVIDED BY THIRTY THE RESULT IS THREE FIND THE NUMBER

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Question 941992: WHEN FOUR IS ADDED TO A NUMBER AND THE SUM IS DIVIDED BY THIRTY THE RESULT IS THREE FIND THE NUMBER
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

let number be x
when 4 is added to x we have: x%2B4
when the sum is divided by 30 we have:%28x%2B4%29%2F30
the result is 3:%28x%2B4%29%2F30=3
now we have equation %28x%2B4%29%2F30=3 and we can solve it for x
%28x%2B4%29%2F30=3....both sides multiply by 30
30%28x%2B4%29%2F30=3%2A30
cross%2830%29%28x%2B4%29%2Fcross%2830%29=90
x%2B4=90
x=90-4
x=86
so, your number is 86