Question

if x+2y = 5 and x-2y =7 than find the value of y​

Answer 1

Answer:

x+2y=5.....(i)

x-2y=7...... (ii)

Adding eq (i)and(ii)

x+2y+x-2y=5+7

2x=12

x=6

Putting x=6 in eq. (i)

6+2y=5

2y=-1

y=-1/2 is the required answer.

Answer 2

Answer:

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