Question

The sum of a two digit number and twice its reverse is 396 then the linear equation in two variables is


please guys give correct answer don't give rubbish answers​

Answer 1

Step-by-step explanation:

$let \: unit \: digit = x$

$tenth \: digit = y$

$The \: number =(10y + x)$

$reversing \: number.=(10x + y)$

$Now ,$

$(10y + x) + 2(10x + y) = 396$

$(10y + x + 20x + 2y) = 396$

$(12y + 21x) = 396$

$(4y + 7x) = 132$