Question

x aur y ke liye Hal kare 3x + 2y =11 aur 2x +3y = 4​

Answer 1

Answer:

Y= - 2 and X = 5

Step-by-step explanation:

3x+2y=11 and 2x+3y=4 are the two equations

We need to choose a variable to eliminate x or y

(is going to be solved by elimination method)

3x+2y=11 - eq (1) * 2

2x+3y=4 - eq(2)*3 {we have choose x to eliminate}

So after multiplying we obtain

6x+4y=22

6x+9y=12

X gets cancelled and as they are same signs we have to change the signs of the lower terms

-5y= 10 Therefore y=-2

Substitute in eq 1

3x+2(-2)=11

3x-4=11 ( we will shift - 4 to right hand side so it becomes +4)

3x = 15 Therefore x=5

Answer 2

Answer:

3x + 2y = 11 ........ (i)

2x + 3y = 4...(ii)

=> 3x +2y = 11 ......x3 = 9x + 6y = 33 (iii)

=> 2x + 3y = 4......x2 = 4x + 6y = 8 (iv)

substrate (iii) from (iv) we get 5x = 25 => x =25/5 =5

substituting x = 5 in equation (i) , we get 3.(5) +2y = 11 => 15+2y = 11 => 2y = 11 - 15 = -4 => y = -4/2 = -2

by using elimination method