Question

If 3x+5y=9 and 5x+3y=7 then whatis the vslue of x+y=?​

Answer 1

Answer:

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Step-by-step explanation:

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

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

Adding equation (1) and (2)

8x + 8y = 16

8(x+y) = 16

x + y = 16/8

x + y = 2

Answer 2

Answer:

x = 0.5, y=1.5

Step-by-step explanation:

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

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

Adding equation (1) and (2)

8x + 8y = 16

(8x\8)+(8y\8)=16\8

x+y =2