Chapter 1: Q5 (page 10)

Find the value of the variable.
$15 - z = 0$

Short Answer

Expert verified

The value of the variable is $z = 15$ .

Step by step solution

Step 1. Subtract 15.

To find the value of variable z in the equation $15 - z = 0$ , subtract 15 from both sides of the equation.

$15 - z - (15) = 0 - (15)$

Step 2. Collect like terms.

Remove all the brackets and collect the like terms.

$15 - 15 - z = 0 - 15$

Step 3. Simplify the equation.

To further simplify, combine the like terms.

$\begin{array}{l} 15 - 15 - z = 0 - 15 \\ 0 - z = - 15 \\ - z = - 15 \end{array}$

Step 4. Multiply by -1.

In order to obtain z, multiply the equation $- z = - 15$ from both sides with $- 1$ .

Step 5. Verify the value.

In order to verify the value of z, substitute 15 for z into the equation $15 - z = 0$ .

$\begin{array}{l} 15 - (15) = 0 \\ 0 = 0 True \end{array}$

Hence, the value of the variable is $z = 15$ .

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Find the value of the variable.
$15 - z = 0$

Short Answer

Step by step solution

Step 1. Subtract 15.

Step 2. Collect like terms.

Step 3. Simplify the equation.

Step 4. Multiply by -1.

Step 5. Verify the value.

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Find the value of the variable.15-z=0

Short Answer

Step by step solution

Step 1. Subtract 15.

Step 2. Collect like terms.

Step 3. Simplify the equation.

Step 4. Multiply by -1.

Step 5. Verify the value.

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Pure Maths

Probability and Statistics

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Geometry

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Study anywhere. Anytime. Across all devices.

Find the value of the variable.
$15 - z = 0$