Question

simultaneous equation
5x +2y = 14 and 2x+ 5y=7​

Answer 1

Answer:

Step by Step Solution

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System of Linear Equations entered :

[1] 5x - 2y = 14

[2] 2x - 5y = 11

Graphic Representation of the Equations :

-2y + 5x = 14 -5y + 2x = 11

Solve by Substitution :

// Solve equation [2] for the variable x

[2] 2x = 5y + 11

[2] x = 5y/2 + 11/2

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

[1] 5•(5y/2+11/2) - 2y = 14

[1] 21y/2 = -27/2

[1] 21y = -27

// Solve equation [1] for the variable y

[1] 21y = - 27

[1] y = - 9/7

// By now we know this much :

x = 5y/2+11/2

y = -9/7

// Use the y value to solve for x

x = (5/2)(-9/7)+11/2 = 16/7

Solution :

{x,y} = {16/7,-9/7} hope help full to you

Answer 2

anwer is I don't know