Question

if 2,1 is a solution of the linear equation 5x-2y+c=0 find the value of c and also 2 solutions for it
pls fast​

Answer 1

The value of c is -8 and two solutions are (1, -3/2) and (-1, -13/2)

Answer 2

Answer:

Given equation, 2x + 3 y = k..

X= 2, y=1 is the solution of resultant

equation..

2(2) +3 (1) = k..

••• there fore k =7...

••• Resultant equation is 2x +3 y =7.. At x=0 , 2(0)+ 3 y = 7..

y=

3

7

At y= 0, 2x+3(0) =7

X=

2

7

••• 0,

3

7

and

2

7,

••• 0,

3

7

and

2

7

,0 are two more solutions of resultant equations...