Question

Let the numbers be x, y
Sum
= 15
x + y
Difference
= 7
X-y
(x + y) + (x-y)
2x
X
Numbers
​

Answer 1

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Answer 2

Answer:

x=11

y=7

Step-by-step explanation:

x+y=15

x=15-y---1

x-y=7---2

substitute value of x in eqn 2

15-y-y=7

15-2y=7

-2y=7-15

-2y= -8

y= -8/-2

y=4---3

substitute the value of yin eq 1

x=15-y

x=15-4

x=11

verification:

given that x-y=7

11-4=7

7=7

lhs=rhs

hence proved

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