"Writing expressions with variables" is one of the important basic stuff of algebra in math.

Students who would like to learn solving word problems in math must study this basic stuff.

Let us see, how to write verbal phrase into expressions.

If there is any unknown value, in the given verbal phrase, replace it by some English alphabet.

**Question 1 :**

Write the given verbal phrase into mathematical expression

"The sum of 5 times a number and 8"

**Answer :**

5x + 8

**Question 2 :**

Write the given verbal phrase into mathematical expression

"2 times the sum of 7 times a number and 4"

**Answer :**

2(7x + 4)

**Question 3 :**

Write the given verbal phrase into mathematical expression

"7 less than 4 times a number"

**Answer :**

4x - 7

**Question 4 :**

Write the given verbal phrase into mathematical expression

"One fifth of sum of 3 times a number and 9"

**Answer :**

( 3x + 9 ) / 5

**Question 5 :**

Write the given verbal phrase into mathematical expression

"One seventh of 3 less than 4 times a number"

**Answer :**

( 4x - 3 ) / 7

**Question 6 :**

Write the given verbal phrase into mathematical expression

"5 times of a number is decreased by 8"

**Answer :**

5x - 8

**Question 7 :**

Write the given verbal phrase into mathematical expression

"6 times of a number is increased by 15"

**Answer :**

6x - 15

**Question 8 :**

Write the given verbal phrase into mathematical expression

"7 less than 3 times the sum of a number and 6"

**Answer :**

3(x + 6) - 7

**Question 9 :**

Write the given verbal phrase into mathematical expression

"3 times the difference between a number and 8"

**Answer :**

3(x - 8)

**Question 10 :**

Write the given verbal phrase into mathematical expression

"One fourth of 3 times the difference between a number and 6"

**Answer :**

3(x - 6) / 4

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