Value & Unknown Variable Practice Problems | Math Equations

To solve the equation $5x = 0$ for $x$, we will use the following steps:

• Step 1: Identify that the equation is $5x = 0$.
• Step 2: To solve for $x$, divide both sides of the equation by 5.

Let's perform the calculation as outlined in Step 2:

$5x = 0$

Divide both sides by 5 to isolate $x$:

Simplifying, this gives:

$x = 0$

Therefore, the solution to the equation $5x = 0$ is $x = 0$.

The correct answer is option 4: $x = 0$.

To solve the equation $5x = 1$, we need to isolate $x$. Here are the steps:

• Step 1: Start with the equation $5x = 1$.
• Step 2: Divide both sides of the equation by the coefficient of $x$, which is 5, to isolate $x$. This gives us:
$\frac{5x}{5} = \frac{1}{5}$
• Step 3: Simplify the left side:
$\frac{5x}{5} = x$
• Step 4: Write the simplified equation:
$x = \frac{1}{5}$

Therefore, the solution to the equation $5x = 1$ is $x = \frac{1}{5}$.

The correct answer choice is:

$x = \frac{1}{5}$

We are given the equation y=x

We are also given the value of x, 

x=2

Therefore, we will insert the given value into the equation

y=2

And that's the solution!

To solve this problem, we'll follow these steps:

• Step 1: Identify the given equation $y = 5x$.
• Step 2: Substitute the value $x = 2$ into the equation.
• Step 3: Calculate the value of $y$.

Now, let's work through each step:
Step 1: We start with the equation $y = 5x$.
Step 2: Substitute $x = 2$ into this equation:
$y = 5 \times 2$.
Step 3: Perform the multiplication:
$y = 10$.

Therefore, the solution to the problem is $y = 10$.

These signs in the exercises refer to the concept of "absolute value",

In absolute value we don't have "negative" or "positive", instead we measure the distance from point 0,

In other words, we always "cancel out" the negative signs.

In this exercise, we'll change the minus to a plus sign, and simply remain with 19 and a quarter.

And that's the solution!