# What is Simultaneous Equations?

Simultaneous equations are equations that have a specified number of variables that can be solved by substitution.

### What is simultaneous equation?

Simultaneous equation is nothing: it cannot exist. A system of simultaneous equations is a set of 2 or more equations with a number of variables. A solution to the system is a set of values for the variables such that when the variables are replaced by these values, each one of the equations is true. The equations may be linear or of any mathematical form. There may by none, one or more - including infinitely…

### What has the author Cheng Hsiao written?

Cheng Hsiao has written: 'Linear regression using both temporally aggregated and temporally disaggregated data' -- subject(s): Regression analysis, Time-series analysis 'Measurement error in a dynamic simultaneous equations model with stationary disturbances' -- subject(s): Equations, Simultaneous, Errors, Theory of, Simultaneous Equations, Theory of Errors

### How do you work a simultaneous equation?

You cannot work a simultaneous equation. You require a system of equations. How you solve them depends on their nature: two or more linear equations are relatively easy to solve by eliminating variables - one at a time and then substituting these values in the earlier equations. For systems of equations containing non-linear equations it is simpler to substitute for variable expression for one of the variables at the start and working towards the other…

### Is there simultaneous equation which cant be solved?

By definition, there cannot be a simultaneous equation that cannot be solved, there must be a set of simultaneous equations. It is important to realise that simultaneous equations need not be linear. It is simple to devise a pair of linear equations that are inconsistent: x + y = 1 and x + y = 2 There is no solution. Graphically, the two lines are parallel. Another possibility is x + y = 1 and…