We are asked to complete the following definition.
A set of two or more equations in two or more unknowns is called a of .
Let's take a look an example of a set of three equations in four unknowns w, x, y, and z.
x+w=13 & (I) x^w-z^(13)=sin y & (II) x^2+z^2=sqrt(y) & (III)
A set like this is called a system of equations. Systems of equations help us solve problems where multiple conditions must be met simultaneously. They are commonly used in disciplines like physics, economics, and engineering, where multiple factors affect each other. We can now finish the given definition.
A set of two or more equations in two or more unknowns is called a system of equations.
