Question

ronit named persons
$x + y = 10 \\ x - y = 2 \\ solve \: the \: two \: equations \: given \: above \: find \: the \: value \: of \: x \: and \: y$
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Answer 1

Then 2x=12
X=6

And

6+y=10

Y=4

Hope it helps you...

Answer 2

given :-

x + y = 10

x - y = 2 …(i)

using substitution method,

x + y = 10

=> x = 10 - y …(ii)

putting value of equation (ii) in (i)

=> 10 - y - y = 2

=> 10 - 2y = 2

=> -2y = 2 - 10

=> -2y = 8

=> y = -8/2

=> y = -4 …(iii)

putting value of (iii) in (i)

=> x - (-4) = 2

=> x + 4 = 2

=> x = 2 - 4

=> x = -2