The sum of the digits of a two-digit number is seven. If the digits are reversed, the new number decreased by 2 equals twice the original number. Find the number.
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Let x,y are number of two digit number
Given that sum of the two digit number 7
I.e x+y =7......(1)
According to the equation
10y+x-2=2(10x+y)
19x-8y+2=0........(2)
solving equation (1)&(2)
x=2 and y=5.
Given that sum of the two digit number 7
I.e x+y =7......(1)
According to the equation
10y+x-2=2(10x+y)
19x-8y+2=0........(2)
solving equation (1)&(2)
x=2 and y=5.
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