Question

(ii) 3x-5y-4=0 और 9x=2y+7​

Answer 1

Step-by-step explanation:

3x-5y-4=0

9x-3y-7=0

multiply in equations 1 by 3

9x-15y=12

9x-3y=7

12y=5

y=5/12

3(5/12)-5y=4

5/4-5y=4

5-20y=16

-20y-11=0

-20y=11

y=-11/20

Answer 2

HERE IS UR ANSWER DEAR

3x -5y =4 --------(1)

9x-2y = -7--------(2)

(1)×3 --- 9x -15y = 12

(2) ------9x -2y = 7

by elimination method ,

-13y = 5

y = - 5/13

and

sub/: y value in (1)

3x - 5(-5/13) = 4

3x + 25/13 = 4

3x = 4 - (25/13)

3x = 52-25/13

3x = 27/13

x= 9/13