Question

3x+5y=4,x-5y=8 solve this equation graphically​

Answer 1

Step-by-step explanation:

Solve by Substitution :

// Solve equation [2] for the variable x

[2] x = 5y + 8

// Plug this in for variable x in equation [1]

[1] 3•(5y+8) + 5y = 4

[1] 20y = -20

// Solve equation [1] for the variable y

[1] 20y = - 20

[1] y = - 1

// By now we know this much :

x = 5y+8

y = -1

// Use the y value to solve for x

x = 5(-1)+8 = 3

Solution :

{x,y} = {3,-1}

Answer 2

I hope that this will help you