Question

find the value of a If (1,-1) is the solution
of the equation 2x+ay=5 Find the two
more solutions of the equation​

Answer 1

Answer:

if X=1 .y=-1 then

2(1)+a(-1)=5

2-a=5

2-5=a

a=-3

Answer 2

2x + ay = 5
As (1,-1) is a solution of the equation, so it will satisfy this equation.
2(1) + a(-1) = 5
2 - a = 5
a = 2 - 5 = -3
Equation is 2x - 3y = 5
For x = 2, we have:
2(2) - 3y = 5
4 - 3y = 5
3y = -1
y = -
For x = 4, we have:
2(4) - 3y = 5
8 - 3y = 5
3y = 3
y = 3

Hope it is useful to you