Question

find the value of x and y in equation 2x +3y=0 , 4x - 5y=0​

Answer 1

Answer:

Given 2x+3y+8 = 0 ...(1)

4x+5y+14 = 0 ...(2)

multiply equation. (1) by 5 and equation (2) by 3 we get

10x + 15y + 40 = 0

12x + 15y + 42 = 0

- - -

___________________

-2x-2=0

[x = -1] from equation.(1) 3y = 8 -2x

y=

3

10

Hence using cross multiplication method intersection point of line 1 & 2 are(−1,3/10)