Chapter 3: Q. 15 (page 315)

In the following exercises, solve each number word
The sum of a number and eight is $12$ . Find the number.

Short Answer

Expert verified

The number is $4$ .

Step by step solution

Step 1. Given Information

We are given that the sum of a number and eight is $12$ .

We have to find the number.

Step 2. Forming the equation

Let the number be x,

So, the equation will be,

$x + 8 = 12$

Step 3. Solving the equation

Subtracting $8$ from both sides, we get

$x + 8 = 12 x = 12 - 8 x = 4$

Hence, the number is $4$ .

Step 4. Checking the solution

Putting the value ofxin the equation, we get

$x + 8 = 12 4 + 8 = 12 12 = 12 L H S = R H S$

Hence the solution is correct.

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In the following exercises, solve each number word
The sum of a number and eight is $12$ . Find the number.

Short Answer

Step by step solution

Step 1. Given Information

Step 2. Forming the equation

Step 3. Solving the equation

Step 4. Checking the solution

One App. One Place for Learning.

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In the following exercises, solve each number wordThe sum of a number and eight is 12. Find the number.

Short Answer

Step by step solution

Step 1. Given Information

Step 2. Forming the equation

Step 3. Solving the equation

Step 4. Checking the solution

One App. One Place for Learning.

Most popular questions from this chapter

Recommended explanations on Math Textbooks

Discrete Mathematics

Decision Maths

Theoretical and Mathematical Physics

Statistics

Applied Mathematics

Probability and Statistics

Study anywhere. Anytime. Across all devices.

In the following exercises, solve each number word
The sum of a number and eight is $12$ . Find the number.