Question

solve for X and Y the equations are X + 3 Y is equal to 1.2 and 7 x minus 2 Y is equal to 17 upon 6​

Answer 1

Answer:

x=109/230, y=27/114

Step-by-step explanation:

x+3y=12/10 = 10x +30y =12

7x-2y=17/6 = 42x -12y=17

use elimination method.

multiply 2 both side in eq 1 i.e x+ 3y =12

multiply 5 by both side in eq 2 i.e 7x-2y=17

after multiplication the result is

20x+ 60y=24

210x-60y=85

( +60 and - 60 is cancelled out )

the result is 230x =109 ; ( x=109/230)

now put the value of x in eq 1 that is

=20x+60y=24

20(109/230)+60y=24 (y=27/115)

at last u can verify ur answer by putting x and y value in above eq.