Question

2x + 4y = 12 and 4x - 5y = 20 graphic solution​

Answer 1

Step-by-step explanation:

Solve equation [2] for the variable x

[2] 3x = 5y + 20

[2] x = 5y/3 + 20/3

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

[1] 2•(5y/3+20/3) - 4y = 12

[1] - 2y/3 = -4/3

[1] - 2y = -4

// Solve equation [1] for the variable y

[1] 2y = 4

[1] y = 2

// By now we know this much :

x = 5y/3+20/3

y = 2

// Use the y value to solve for x

x = (5/3)(2)+20/3 = 10

Solution :

{x,y} = {10,2}

Answer 2

Answer:

The first attachment is of 2x+4y=12.

and,

The second attachment is of 4x-5y=20.

Hope it helps you...

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