Answers

2016-01-29T18:43:44+05:30
Let the no. Be x Equation formed is (4x/7)+18=x 4x/7=x-18 4x=7x-126 -3x=-126 X=42
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2016-01-29T19:20:15+05:30
Let the number be x
four seventh of the no =  4/7 of x
= (4/7)×x 
= 4x/7
According to the question
    x = 4x/7   + 18
⇒ x - 4x/7 = 18
⇒ (7x - 4x)/7 = 18
⇒ 3x/7 = 18
⇒ 3x = 18×7
⇒ 3x = 126
⇒ x = 126/3
∴ x = 42
∴The no is 42
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