Question

a number consists of two digits whose sum is 8 if 18 is added to the number its digits are reversed find the number

Answer 1

Let first number be x
second number be y

x+y=8---(1)

10x+y+18=10y+x
9x-9y=-18
x-y=-2------(2)

Adding both equation
2x=6
x=3


Putting x in equation 1
We get,
x+y=8
3+y=8
y=8-3
y=5

Answer 2

❤ HERE IS YOUR ANSWER ❤

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$\color{red}{ \boxed{\bold{ \underline{ Answer }}}}$

⭐Let first number be x
second number be y

_____x+y=8---(1)

10x+y+18=10y+x
_^_^^^9x-9y=-18
x-y=-2------(2)
___________^______
Adding both equation
2x=6
...............x=3

Putting x in equation 1
We get,
x+y=8
3+y=8
y=8-3
ans =y=5




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❤HOPE IT HELPS YOU❤