Question

10. If 3x + 5y = 9 and 5x + 3y =7 then what is the value of x + y?

2


16


9


7

2.​

Answer 1

2 is answer

see the attached image for detail explanation.

thank you

Answer 2

Answer:

Answer to your question

Step-by-step explanation:

By adding both equation

3x+5y+5x+3y = 9+7

8x+8y = 16

8(x+y) =16

x +y = 16/8

x +y = 2