Question

Solve: x - y = 25
x = 40 + 2y​

Answer 1

Answer:

x = 10 , y = -15

Step-by-step explanation:

x - y = 25

x = 25 + y --------------> (i)

x = 40 + 2y

25 + y = 40 + 2y   [ substitute (i) ]

y - 2y = 40 - 25

-y = 15

y = -15 ---------------> (ii)

Substitute (ii) in (i)

x = 25 + (-15)

x = 25 - 15

x = 10

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Answer 2

Step-by-step explanation:

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