Question

If (2,-1) is a solution of 5c+by+4=0 then. The value of 'b' is ---------( )

A) 13. B) -12
C) 0. D) 14

I will mark you as brainliest

Answer 1

let x=2 y=-1
put the values of x and y in the following equation.
5x+by+4=0
5(2)+b(-1)+4=0
10-b+4=0
14-b=0
-b=-14
b=14
ans =14

hope it helps u

Answer 2

D is your answer please mark me as brainliest