Question

3x+2y+1=0,2x-3y+8=0 solve by elimantion​

Answer 1

Step-by-step explanation:

See the above picture for the answer ...

Answer 2

AnSwer:-

(x,y)=(12\5,-21\5) is the solution for given equations.

SoLution:

The given equations are

3x+2y+1=0

i.e 3x+2y=-1...(1)

2x+3y+8=0

i.e. 2x+3y=-8...(2)

Add equations (1) and (2)

3x+2y=-1

+

2x+3y=-8

5x+5y=-9

Divide both sides by 5

x+y=-9/5...(3)

Subtract equation (2) from equation (1)

3x+2y=-1

-

2x+3y=-8

x-y=7...(4)

Add equations (3) and (4)

x+y=-9\5

+

x-y=7

2x=24\5

Dividing both sides by 2

x=12\5

Substitute x=12\5 in equation 3

12\5+y=-9\5

y=-9\5-12\5

y=-21\5

(x,y)=(12\5,-21\5) is the solution for given equations.