Question

if X+y=11 and x-y=13 find x=?​

Answer 1

Answer:

x+y =11

y = 11-x

so x - y = 13

already we know the value of y = 11- x

so x - (11-x) =13

x-11+x =13

2x = 13-11

2x = 2

x =2/2

x = 1

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Answer 2

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give, x+y = 11 --------(i),

x-y=13-------------(ii),

(i)+(ii),

x+y+x-y = 11+13

2x = 24

x = 24/2

x = 12

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