In general, a system of non-linear equations cannot be solved by substitutions.
Isolating a variable in one of the equations.
The first step is usually to solve one of the equations for one of the variables.Once you have done this, you can replace the right side of this equation for the variable, in one of the other equations.
Graph both equations on the same graph. Where they intersect is the solution to the system of equations
Arthur Cayley
The system of equations developed from the early days with ancient China playing a foundational role. The Gaussian elimination was initiated as early as 200 BC for purposes of solving linear equations.
Isolating a variable in one of the equations.
The first step is usually to solve one of the equations for one of the variables.Once you have done this, you can replace the right side of this equation for the variable, in one of the other equations.
Graph both equations on the same graph. Where they intersect is the solution to the system of equations
isolate
2
A system of equations means that there are more than one equations. The answer depends on the exact function(s).
None, one or many - including infinitely many.
It is called solving by elimination.
The solution is the coordinates of the point where the graphs of the equations intersect.
The first step is to show the equations which have not been shown.
Arthur Cayley
three things: 1) that the value of 4 is equal to the value of 4. 2) you did not obtain any revealing information. 3) your strategy for solving that system of equations was not good.