Question

x + 3y = 18
4x – 3y = -3

Answer 1

Answer:

here,

x + 3y = 18........equation(i)

or, 4x - 3y =-3.......equation(ii)

now,

Adding equation ( i ) and equation (ii )

x+ 3y = 18

+ 4x- 3y = -3

5x-0 =15

or, x = 15

5

or, x= 3

also, substituting the value of x in equation (i),we get

or, x+ 3y = 18

or, 3 + 3y= 18

or, 3y = 18 - 3

or, 3y = 15

or, y = 15

3

or, y= 5

therefore, x =3 and y=5