Question

11. x-y + 3 = 0,2x + 3y - 4 = 0.​

Answer 1

Answer:

X - y =-3. ; 2x +3y = 4.

multiply by 2.

2x - 2y = -6.

now use elimination method .

2x +3y = 4.

- 2x -2y = -3.

(+). (+)

----------------------

5y = 7.

hence y = 7/5.

now put this value in equation (i).

then solve linear equation u willvget value of x

Answer 2

Answer:

x=-1 y=2

Step-by-step explanation:

x-y=-3.......i

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

multiplying by 3 in eq i

3x-3y=-9

2x+3y=4

on adding the equations

5x=-5

x=-5/5 =-1

put the value of x in eq i

x-y=-3

-1-y=-3

-y=-3+1

-y=-2

y=2

now checking the value

x-y=-3

-1-2=-3

-3=-3 ✅

L.H.S = R.H.S

2(-1)+3(2)=4

-2+6 =4

4=4 ✅

Hope it will help you

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