Algebra and Functions - Praxis Math

Card 0 of 4

Question

Solve for .

Answer

In order to solve for the variable, , we need to isolate it on the left side of the equation. We will do this by reversing the operations done to the variable by performing the opposite of each operation on both sides of the equation.

Let's begin by rewriting the given equation.

Subtract from both sides of the equation.

Simplify.

Divide both sides of the equation by .

$\frac{4x}{4}=\frac{80}{4}$

Solve.

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Question

Solve for .

Answer

In order to solve for the variable, , we need to isolate it on the left side of the equation. We will do this by reversing the operations done to the variable by performing the opposite of each operation on both sides of the equation.

Let's begin by rewriting the given equation.

Subtract from both sides of the equation.

Simplify.

Divide both sides of the equation by .

$\frac{5x}{5}=\frac{50}{5}$

Solve.

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Question

Solve for .

Answer

In order to solve for the variable, , we need to isolate it on the left side of the equation. We will do this by reversing the operations done to the variable by performing the opposite of each operation on both sides of the equation.

Let's begin by rewriting the given equation.

Add to both sides of the equation.

Simplify.

Divide both sides of the equation by .

$\frac{6x}{6}=\frac{66}{6}$

Solve.

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Question

Solve for .

Answer

In order to solve for the variable, , we need to isolate it on the left side of the equation. We will do this by reversing the operations done to the variable by performing the opposite of each operation on both sides of the equation.

Let's begin by rewriting the given equation.

Add to both sides of the equation.

Simplify.

Divide both sides of the equation by .

$\frac{9x}{9}=\frac{126}{9}$

Solve.

Compare your answer with the correct one above

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