Question

Solve the following using any method.
5x-3y=19
2x-4y=16

Answer 1

Answer:

2x - 4y = 16

x - 2y = 16

x = 2y + 16

putting value of x

5x - 3y = 19

5×(2y + 16) - 3y = 19

10y + 80 - 3y = 19

7y = 19 - 80

7y = -61

y = -61/7

x = 2×(-61/7) + 16

x = -122/7 + 16

x = -10/7

Step-by-step explanation:

HOPE IT WILL HELP YOU:-)

Answer 2

Answer:

5x-3y=19.....................(1)

2x-4y=16....................(2)

★ MULTIPLY BY EQUATION (2) BY 5 & (1) BY 2 .

10x-20y=80...............(3)

10x-6y= 38................(4)

★ SUBSTRACT EQUATION (4) FROM (3)

10x -20y. =80

-

10x -6y. =38

( -) (+). (-)

____________________

0x -14y. = 42

-y. =. 42÷14

-y. =. 3

y. =. -3

★ PUT THE VALUE OF Y(-3) IN EQUATION (2)

2x-4y= 16

2x - 4 (-3) = 16

2x +12 =16

2x =16-12

2x= 4

x = 4÷2

x = 2