The similarities and differences between one and two variable expressions are highlighted below.
Equation involving one variable can be written thus :
Equation involving two variables can be written thus :
.
Similarities :
- The concept of representing variables in both situations are the same, with x and y depicting the variables in both scenarios.
- The expression on the right - hand side is expected to be equal to the expression on the left hand side of the equation.
Differences:
- Only one unknown is involved when dealing with one variable while two unknowns are associated with two variable expressions.
- Equations involving one unknown are fairly straightforward to solve while those involving two variables may require the use of simultaneous equations in other to obtain a solution.
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