Question

2x+3y=9 4x+6y=15 elimination method

Answer 1

Answer:

2x + 3y = 9 .... (1)

4x + 6y = 15 .... (2)

multiply equation 1 by 2 and 2 by 1

8x + 12 = 36

8x + 12 = 30

ans - y = 6

put y =6 in equation ( 1 )

2x + 3×6 = 9

2x + 18 = 9

2x = 9 - 18

2x = - 9

x = 2/9