Question

if x and y are linear pair such that x-y=80 then find the value of x

Answer 1

x-y=80

then

x=80+y

.........

Answer 2

if.. x- y = 80.
x = 80 + y
and x and y are linear which means
x + y = 180. eq1.
put x = 80 + y in eq 1 .
80 + y + y = 180.
2y= 100
y = 50 ..
x = 80 + y
x = 80 + 50
x= 130 ...

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