Think of a number double it and add 15. if the result is 81. find the number?
Think of a number double it and add 15. if the result is 81. find the number?
Explanation
Suppose the number is x.
Double of X= 2x.
Addition of 15= 2x+15.
Result=81.
2x+15=81.
2x=81-15.
x=66/2=33.
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ND11-12-2022