Question

find the value of x&y by substitution method
3x+9y=0 equation 1
2x-2y=0 equation 2​

Answer 1

Answer:

3x + 9y = 0

2x -2y =0

multiple eqn 1 by 2) and 2 by 3), we get

6x + 18y = 2 -(iii)

6x -6y = 3 - (iv)

(-) (+) (-)

--------------------. subtracting both the eqn

24y = -1

y= -1/24

substitute value of y in eqn 1

3x + 9y = 0

3x + 9( -1/24) = 0

Further solve this equation and find the value of x