Question

solve: 18x + 13y=8
27x + 12y=12

Answer 1

Heya !!!


18X + 13Y = 8 --------(1)


27X + 12Y = 12 -------(2)



From equation (1) we get,



18X + 13Y = 8



18X = 8 - 13Y



X = ( 8-13Y/18) ---------(3)


Putting the value of X in equation (2)



27X + 12Y = 12


27 × ( 8 - 13Y /18) + 12Y = 12



3 × ( 8 - 13Y /2) + 12Y = 12


24 - 39Y/2 + 12Y = 12


-39Y + 24Y + 24 = 24


-15Y = 24-24


Y = 0/-15 = 0


Putting the value of Y in equation (3)


X = 18 - 13Y/18 = 18 - 13 × 0/18


X = 18/18 = 1



★ HOPE IT WILL HELP YOU ★

Answer 2

Hey dear,

Here is ur answer,

18x+13y =8..........(1)

27x+12y =12......... (2)


From eq( 1) we get,

18x=8-13y.

x=(8-13y)/18.

Substitute in eq (2).

$= > \: 27( \frac{8 - 13y}{18} ) + 12y = 12$

$= > \frac{24 - 39y}{2} = 12 - 12y$

=> 24-39y= 2 (12-12y)

=> 24-39y =24-24y.

=> 15y =0.

=> y = 0.

Substitute in eq (1).

=> 18x+13y =8.

=> 18x =8.

=> x=4/9.