need full solution...not just answer
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3
Answer:
26
Step-by-step explanation:
Let number = 10x + y
according to question,
xy = 12 --------(1)
again,
10x + y + 36 = 10y + x
9x - 9y = 36
x - y = 4
x = 4 + y
put this in equation (1)
y( y + 4) = 12
y² + 4y -12= 0
hence, quadratic equation ,
is y² + 4y -12 = 0
solve this y = 6, but y ≠ -2
then , x = 2
so,number= 10×2 + 6 =26
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