Question

solve the following simultaneous equation graphically 2x+3y=12; x+y=1​

Answer 1

Answer:

The equations intersect at (-9,10)

Step-by-step explanation:

2x+3y=12 -->(1)

x+y=1     --->(2)

eq(1)-2*eq(2)

⇒2x+3y-2x-2y=12-2

⇒y=10

Substitute y =10 in eq(2)

x=1-10=-9

The equations intersect at (-9,10).I attached the graphical solution in below photo.

Hope this will help you.....Please mark this brainliest answer..

Answer 2

Answer:

2x+3y=12_equation 1 , x+y=1_equation 2

x+y=1

x=1-y

putting the value of x in equation 1

2x+3y=12

2-2y+3y=12

2+y=12

y=12-2

y=10

putting the value of y in equation 2

x+y=1

x+10=1

x=1-10

x= -9

The final answer is x=-9 and y=10

This is the answer of this question

I hope this will help you