Question

The tens digit in a 2-digit number is 4 more than the digit at the ones place. If the sum of the two digits is 10,
find the number

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Answer 1

Answer:

let the number on tens place be x and units place be y

so the originol number is 10x+y

y+4=x

x-y=4  [1]

x+y=10 [2]

by adding 1 and 2 , we get

2x=14

so x=7

by puting the value of x in 1 , we get

y=3

so the number is 10*7+3=73

answer is 73

Step-by-step explanation:

Answer 2

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