Question

if x and y are the angle forming a linear pair such that x-y equal to 60 and x+y equal to 80 then find y


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Answer 1

Answer:

the value of y is 10.

Step-by-step explanation:

x-y=60 -----------equation 1

x+y=80 ----------equation 2

subtracting 2 equations

x-y=60

- x+y=80

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-2y = -20

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y = -20/-2

y =10

Answer 2

Answer:

x = 70° and y = 10°

Step-by-step explanation:

Since, x - y = 60

So, x = 60 + y___(1)

Also, x + y = 80

So, 60 + y + y = 80 (from (1) )

So, 2y + 60 = 80

So, 2y = 80 - 60 = 20

So, y = 20/2

So, y = 10°

Now, substitute this value in (1):

x = 60 + 10

So, x = 70°