Question

whats the sum of 11 and difference of 5

Answer 1

Let the big number be x

Let the small number be y

According to the 1st condition

x+y=11

According to the 2nd condition

x–y=5

Add equation (1) and (2)

x+y=11

x-y=5

______

2x=16

x= 16/2

x=8

Substitute x=8 in equation (1)

8+y=11

y=11–8

y=3

.°. The two numbers are 8 and 3

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