Which of the following is NOT TRUE about simultaneous equations?

A. The number of variables must be equal to the number of equations.
B. Where two lines intersect, the values of the variables at that point must satisfy the equations.
C. The simultaneous equations must be satisfied by values of the variables as well as their reciprocals.
D. Their solution involves finding the values of the variables which are true to all the simultaneous equations.
E. The result of adding the equations or subtracting one equation from the other will be satisfied by the values of the variables.

C. The simultaneous equations must be satisfied by values of the variables as well as their reciprocals.

Explanation:
The correct answer is C. Simultaneous equations do not necessarily require the variables’ reciprocals to satisfy the equations. They are solved by finding values of the variables that satisfy all the given equations, not their reciprocals. The other statements are true about simultaneous equations, making C the incorrect one.