Q: How can systems of equations be solved?

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By elimination or substitution

When you give us a multiple choice question and don't include the choices, we feel sad.

if a dependent system of equation is solved, how many solutions will there be?

It cannot be solved because it is not an equation.

Simultaneous equations can also be solved by substitution or graphically

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By elimination or substitution

The answer depends on whether they are linear, non-linear, differential or other types of equations.

When you give us a multiple choice question and don't include the choices, we feel sad.

A recurrence system can be solved by finding and solving its closed form. A closed form is easily found for simple arithmetic or geometric recurrence systems, but may be hard to find for recurrence systems of a more complex nature. In this case, the recurrence system can be solved recursively.

Yes mathematical equations can be solved.

Algebraic expressions can't be solved because they are not equations but they can be simplified.

if a dependent system of equation is solved, how many solutions will there be?

Simultaneous equations can be solved using the elimination method.

You can use a graph to solve systems of equations by plotting the two equations to see where they intersect

Many problems in economics can be modelled by a system of linear equations: equalities r inequalities. Such systems are best solved using matrix algebra.

It cannot be solved because it is not an equation.

Simultaneous equations can also be solved by substitution or graphically