You can use `GeoGebra`

to solve systems of equations with multiple unknowns.

`GeoGebra`

Instruction 1

- 1.
- Open
`CAS`

under`View`

in`Menu`

. - 2.
- Enter your equations one by one in
`CAS`

, pressing`Enter`

to start a new row for each of your equations. - 3.
- Select each of the rows with an equation in them by clicking the boxes with a row number. You’ll know that the row is selected when the box with the row number has turned purple. To select more than one box at a time, hold down the
`Shift`

key, click the box of the first equation and then click the box with the row number of the last equation. - 4.
- Click
`Solve`

.

If you get $\{\}$ as the output, the system of equations has no solution. If `GeoGebra`

returns one of the variables as a function $\phantom{\rule{-0.17em}{0ex}}\left\{x=f(x)\right\}$, then the system of equations has infinitely many solutions.

Previous entry

How to Solve Systems of Equations in GeoGebra

Next entry

How to Solve Inequalities in GeoGebra