Question

x+y=26
X-y=2a
$x + y = 2b x - y = 2a$
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Answer 1

Step-by-step explanation:

x+y=26

X-y=2a

$x + y = 2b x - y = 2a$

Answer 2

Answer:

X = b+a

y = b-a

Step-by-step explanation:

x + y = 2b ------>1

x - y = 2a ------->2

add 1,2

2 X = 2(a+b)

X = a + b

from 1

a + b + y = 2b

y= 2b-b-a= b-a

so, X = b+a and y = b-a