Question

solve the equation by elimination method 3 X + 4 Y = - 6 and 3 x minus y equal 9​

Answer 1

Answer:

Step-by-step explanation:

Answer 2

Answer:

Step-by-step explanation:

3x+4y=6 ......(1)

3x-y=9..........(2)

From (1),

3x = 6-4y

Substituting this value in eq (2)

We get

⇒ 6-4y-y = 9

-5y = 9-6

-5y = 3

y= 3/-5

Again put this vaue in (1),

3x + 4(3/-5) = 6

3x + 12/-5 = 6

3x = 6+12/5

3x = 42/5

x = 42/5* 3 = 206/5

x= 206/5