User guide

Example 5. A basic example would be to solve for x such that x + 1 = 5.
When using the solve command you must specify the unknown variable. In
this case the unknown variable is x.
The general format to use the solve command would be solve(equation,
variable). Notice that both , and = can be found in two locations: hard
keys and keyboard.
The calculator will solve for any variable so long as it is properly defined.
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