Question

a two digit number is such that the sum of its digit is 4 if 8 is added to the number its digits are reversed find the number in one variable​

Answer 1

Answer:

-59

Step-by-step explanation:

Sol.x+y=4

x=4-y

10x+y+18=10y+x

9x-9y+18=0

x-y+18=0

x-y=-18

4-y-y=-18

4-2y=-18

-2y=-18-4

-2y=-22

y=11

x=4-y=4-11=-7

number=10x+y

10*-7+11

-70+11=-59

number=-59

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