Question

x + y = 22, x - y = 8 what
is the value of x.y? ​

Answer 1

Step-by-step explanation:

x+y=22----(equation 1)

x-y=8-------(equation 2)

Adding equation 1 and equation 2

x+y+x-y=22+8

2x=30

x=15

putting x=15 in equation 1

y=22-x

y=22-15

y=7

Answer 2

Given

x + y = 22

x = 22 - y .......... ( 1 )

Also given

x - y = 8

x = 8 + y ...... ( 2 )

From ( 1 ) & ( 2 ) , we get

8 + y = 22 - y

2y = 14

y = 7

Put y =7 in (1) , we get

x = 22 - 7 = 15

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