Question

linear equation in one variable
1) 2x+3y=-4 , x-5y=11​

Answer 1

Answer:

{x,y} = {1,-2}

Step-by-step explanation:

System of Linear Equations entered :

[1] 2x + 3y = -4

[2] x - 5y = 11

Graphic Representation of the Equations :

3y + 2x = -4 -5y + x = 11

Solve by Substitution :

// Solve equation [2] for the variable x

[2] x = 5y + 11

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

[1] 2•(5y+11) + 3y = -4

[1] 13y = -26

// Solve equation [1] for the variable y

[1] 13y = - 26

[1] y = - 2

// By now we know this much :

x = 5y+11

y = -2

// Use the y value to solve for x

x = 5(-2)+11 = 1

Solution :

{x,y} = {1,-2}