Math, asked by rupeshnagvekar80, 2 months ago

(5) If 3x + 5y = 9 and 5x + 3y = 7 find the value of x + y.

Answers

Answered by abhi569

3

Answer:

2

Step-by-step explanation:

3x + 5y = 9 ...(1)

5x + 3y = 7 ..(2)

Adding (1) and (2):

3x + 5y = 9

5x + 3y = 7

8x + 8y = 16

⇒ 8x + 8y = 16

⇒ 8(x + y) = 16

⇒ x + y = 16/8

⇒ x + y = 2

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