a number consisting of two digit is 7 times the sum of its digit when 27 is subtracted from the number the digits are reversed find the number
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Answer:the answer is 63
Step-by-step explanation:
let the number be 10x+y
10x+y=7(x+y)
10x+y=7x+7y
3x=6y
x=2y (1)
10x+y-27=10y+x
9x-9y=27
x-y=3 (2)
substituting (1) in(2)
2y-y=3
y=3
x=6
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