Question

Solve 3x - 5y =4 and 9x - 2y =7
In elimination method please solve this problem fast please.... ​

Answer 1

Step-by-step explanation:

3x-5y=4––––—(i)

9x-2y=7––––(ii)

now by multiplying 2in equation (i) and 5 in equation (ii)

we get

6x- 10y = 8–––(i)

45x-10y = 35––––(ii)

now by subtracting equation (i)from (ii)

we get ,

45x-10y= 35

(–) 6x-10y = 8

- + -

_________________

39x = 27

x= 27/39

= 9/13

now x = 9/13

putting x in equation ( i)

3x - 5y = 4

3*9/13-5y= 4

27/13-5y=4

27/13-4 =5y

__27-52__=5y

13

__-25___ = y

13*5

= -5/13=y