**Algebraic notation includes five main components: variables, coefficients, mathematical operators (addition, subtraction, multiplication and division), exponents, and parentheses or brackets**

Difference between an albebraic expression and an algebraic equation

An algebraic expression contains atleast one variable but doesn't contain an equal to ( =) sign,whereas an equation contains equal to sign.

for example;

3x^{2 }+ 2y is an * algebraic expression* and

3y + 5 = 17 is * an equation*.

**Algebraic Expressions & Equations Worksheet-3**

- The product of a number and 7 is 63. What is that number?

A. 8 B. 56 C. 9 D. 7

- How do you write "n increased by 4" as an equation?

A. n + 4 B. 4n C. n − 4 D. 4 = n

- Write the following sentence as an algebraic equation. Katrina is y years old. In 5 years she will be 18 years old.

A. 18 ÷ 5 = y B. y − 5 = 18 C. 5y = 18 D. y + 5 = 18

**Click here for worksheets on math comprehension**

- Monika had n stickers. She gave 32 stickers each to two of her friends. If she has 28 stickers left, what is the value of n?

A. 64 B. 91 C. 92 D. 90

- A number increased by seven is fifteen. Find that number.

A. 8 B. 9 C. 22 D. 12

**Answer Keys**

(21)–C; (22)–A; (23)–D; (24)–C; (25)–A