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Chapter 3: Q1. (page 139)

Write the verbal sentence as an equation. Also, solve the equation

鈥淭wice a number plus 5 is equal to 27.鈥�

Short Answer

Expert verified

The equation is2x+5=27 and the solution of inequality is x=11.

Step by step solution

01

Step 1. Apply the concept of linear equations

In this, simply use the concept of understanding the problem and their words very carefully and also take a suitable variable to make equation and also do various mathematical operation to get the solution.

02

Step 2. Find the inequality by explaining the statement

Here, The statement Twice a number plus 5 is equal to 27

From the above, Let the number be x.

Then, according to statement of question, the inequality is 2x+5=27.

03

Step 3. Finding the solution of equation for x

Now, The inequality is 2x+5=27.

Simply subtract 5, to both side of the equation,

2x+5=272x+5鈭�5=27鈭�52x=22x=222x=11

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