Question

x/6+y/15=4 x/3-y/12=4 3/4​

Answer 1

Answer:

and is a 8

Step-by-step explanation:

42+24+205+674=8

Answer 2

Step-by-step explanation:

+

15

y

=4

30

(5x+2y)

=4

5x+2y−120=0

and

3

x

−

12

y

=

4

19

4x−y−57=0

New set of equations is:

5x+2y−120=0....(1)

4x−y−57=0....(2)

From equation (1):

a

1

=5,b

1

=2 and c

1

=−120

From equation (2):

a

2

=4,b

2

=−1 and c

2

=−57

Using cross multiplication method for solving set of equations:

−114−120

x

=

−480+285

y

=

−5−8

1

−234

x

=

−195

y

=

−13

1

−234

x

=−

13

1

x=

−13

−234

⇒x=18

and

−195

y

=

−13

1

y=15

Answer x=18 and y=15