Question

1) Solve 2x + 3y + 4 = 0 ; x - 5y = 11​

Answer 1

Answer: x = -1 and y = -2

Step by step explanation :

2x+3y+4=0 -----------------------(1)

x-5y=11 ---------------------(2)

In equation (2)

Let this be Result 1

Now putting Result 1 in Equation 1

2x+3y+4=0

2(11+5y)+3y+4=0

22 + 10y + 3y + 4 =0

22 + 13y + 4 = 0

13y + 26 = 0

13y = -26

y = -26/13

y = -2

Now, Putting value of y in equation2

x - 5y = 11

x -5(-2) = 11

x + 10 = 11

x = -1

Answer:- x = -1 and y = -2

Answer 2

Answer:2x + 3y + 4 = 0----------------2

from x - 5y = 11--------1

x= 11+ 5y

put in eqn 2​

2x + 3y + 4 = 0

22 + 10y +3y + 4 =0

13y = -26

y = -2

put in 1

x = 11 - 10

x = 1

Step-by-step explanation: