The sum of two number is twice the difference between two number.if the one number is 10 find the second number ?



The sum of two number is twice the difference between two number.if the one number is 10 find the second number ?

Answer : 30

Explanation:


    Assuming the second number is x
    10 + x = 2*(x-10)
    Simplify and solve
    10 + x = 2x-20
    10+20= x
    x = 30
    Therefore the second number is 30


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