Raymond B. answered 04/27/20
Math, microeconomics or criminal justice
a system of 3 equations
x=2
y=-3
Z=-1
you can add them, subtract them
x+y+z = 2-3-1= -2
x+y+z = -2
x-y = 2-(-3) = 5
x-y=5
x+z = 2-1 = 1
Another system of linear equations is then
x+y+z=-2
x-y= 5
x+z = 1
You can find an infinite number of systems of similar equations with the same solution