Question

The solution of system of linear equation x + 2y = 5 and 3x + 5y = 14 is,.

Answer 1

// Solve equation [1] for variable x

[1] x = -2y + 5

// Plug this in for variable x in equation [2]

[2] 3•(-2y+5) + 5y = 14 [2] - y = -1

// Solve equation [2] for variable y

[2] y = 1

// Now we know this:

x = -2y+5 y = 1

// Use the y value to resolve x

x = -2(1) +5 = 3

Workaround:

{x,y} = {3,1}