GED Math : Solving for the Variable

Example Questions

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Solve for :

Explanation:

Solve for :

Explanation:

Example Question #3 : Solving For The Variable

Two more than twice a number equals 9.  What's the square of that number?

Explanation:

Rewrite the algebraic expression in a mathematical formula.

Solve for x.

The square of this number is:

Example Question #4 : Solving For The Variable

Solve for .

No solution

No solution

Explanation:

Since the original statement forces this false statement to be true, the original statement is false regardless of the value of . There is no solution.

Example Question #5 : Solving For The Variable

Solve the inequality for :

Explanation:

- note the switch in the inequality symbol

That is, .

Example Question #6 : Solving For The Variable

Give the solution set of the inequality:

Explanation:

In interval form, this is .

Solve for :

Explanation:

Example Question #8 : Solving For The Variable

Give the solution set of the inequality:

Explanation:

or, in interval form,

Example Question #9 : Solving For The Variable

Consider the expression .

What value, if substituted in for , makes this expression undefined?

Explanation:

is undefined if and only if its denominator is equal to 0.

Solve for :