Question

17x + 15y = 47 and 15x + 17y = 49 . Find value of x + y​

Answer 1

Answer:

The value of x + y is 3.

Step-by-step explanation:

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Answer 2

Answer:

x+y=3

Step-by-step explanation:

In this sum we will use addition subtraction addition:

17x+15y=47____(1)

15x+17y=49____(2)

Adding (1)1&(2)

17x+15y=47

+15x+17y=49

____________

32x+32y=96

_____________

subtracting 1&2

17x+15y=47

-15x+17y=49

____________

2x-2y=-2__________

adding(1)&(2)

x+y=3

x-y=-1

______

2x=2

________

x=1

substituting x=1 in x+y=3

We get

1+y=3

y=2

answer : x+y=3

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