Question

solve by elimination or substitution method
25x-24y=197; 24x-25y=195

Answer 1

Step-by-step explanation:

25x−24y=197 ...(i)

24x−25y=195 ...(ii)

On adding (i) and (ii) , we get

49x−49y=392

⇒x−y=8 ....(iii)

On subtracting (ii) from (i) , we get

x+y=2 ....(iv)

On adding (iii) and (iv) , we get

2x=10

⇒x=5

By putting x=5 in (iv), we get

5+y=2

⇒y=−3