Question

दिलेलं एकसामयिक समीकरण सोडवा: 5x + 2y = -3; x + 5 y = 4

Answer 1

5*-1+2*1=-3,-1+5*1=4(where x=-1,y=1)

Answer 2

5x + 2y = -3 -----------(1)
x + 5y = 4 -------------(2)

mutiplying equation no. 2 by 5
5x + 25y = 20 -------(3)

subtracting equation no. 1 from 3
5x + 25y = 20
- 5x + 2y = -3
---------------------
23y = 23
y = 1

put y= 1 in equation no.2
x + 5 ×1 = 4
x + 5 = 4
x = 4 -5
x = -1

(x,y) = (-1,1) is the soln of given problem