Question

The sum of two digit number is 70 their difference is 16 find the number​

Answer 1

Take First no as x

and

another day y

so

x + y = 70 1st equation

x - y = 16 2nd equation

add both equation

2x = 86

x = 43

put x in 1st equation

y= 27

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Answer 2

let the first no.is X

and the second no.is Y

ATQ

X+Y=70

X-Y=16

X=54

put the value of X in X+Y=70

54+Y=70

Y=70-54=16

first no.is 54

second no.is 16........