Sagot :
Answer:
{x,y} = {1,-2}
Step-by-step explanation:
System of Linear Equations entered :
[1] 2x - 3y = 8
[2] 2x - 5y = 12
Graphic Representation
Solve equation [2] for the variable x
[2] 2x = 5y + 12
[2] x = 5y/2 + 6
// Plug this in for variable x in equation [1]
[1] 2•(5y/2+6) - 3y = 8
[1] 2y = -4
// Solve equation [1] for the variable y
[1] 2y = - 4
[1] y = - 2
// By now we know this much :
x = 5y/2+6
y = -2
// Use the y value to solve for x
x = (5/2)(-2)+6 = 1