Question

1) x+2y=3
3х +5y = 7

solve in simultaneous equation​

Answer 1

Answer: x= -1, y = 2

Answer in detail:

First, multiply the first equation with 3

(x + 2y =3) 3 = 3x + 6y = 9

Taking the difference of the equations

3x + 6y = 9

-

3x + 5y =7

_______________

0 +1 y = 2

y = 2

Equating the value of y in eq. 1

x + 2y = 3

x + 2*2 = 3

x + 4 = 3

x = 3-4 = -1