Question

8.Solution of the linear equation 7:9 y = 1:9 is​

Answer 1

Step-by-step explanation:

7x-9y-19=0 ________ (1)

4x+5y-21=0 ________ (2)

multiplying equation (1) by (5) & (2) by 9 we get

⇒ 35x-45y-95=0

36x+45y-189=0

_________________

71x-284=0

x=284/71=4

[x=4] and 9y=7x-19=28-19=9

[y=1]

∴ value of [x=4] & [y=1]