Question

find the value of c if x = 0 , y = -2 if the solution of equation : 2x + cy = -1​

Answer 1

Answer:

Given: x=0 , y= -2

2x + cy = -1

2(0) + c(-2) = -1

0 - 2c= -1

1 = 2c

1/2 = c

0.5=c

value of c in the given equation is 1/2 or 0.5

Answer 2

Answer:

2x+cy=-1.

given, x=0, y=-2.

2(0)+c(-2)=-1.

0-2c=-1.

-2c=-1.

c=-1+2.

c=+1. (because -×+=- & bigger number is important).