Section 3.2.1: Ordering Equations - Initial Examples

The sets of equations given below can all be solved directly after suitable reordering and rearrangement. For each set of equations:

• Identify the unknowns and confirm that there are as many of these as equations.
• Draw up an incidence table.
• Order the equations for solution and confirm that the new incidence table is lower triangular.
• Rearrange the equations to calculate appropriate output variables and rewrite them in precedence order.

3.2.2 Solutions to Questions
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