Algebra

Parts of Algebra

100

In 7x+4, identify the coefficient.

x

200

In 5a-9, identify the constant.

-9

300

List all the terms in 6x+2y-5.

 6x

2y

-5.

400

How many terms are in 4x²-3xy+7y-10?

4

500

How many terms are in 4x²-3xy+7y-10? Identify them.

Four terms: 4x², -3xy, 7y, -10

Writing Expressions

100

Write an expression for “a number n increased by 8.”

n+8

200

Write an expression for "four times a number x.”

4x

300

Write an expression for “5 less than twice a number m.”

2m-5

400

A taxi charges $4 plus $3 per kilometer. Write an expression for k kilometers.

(4+3)k

500

A rectangle has length x+4 and width x-2. Write an expression for its perimeter.

4x+4

Evaluate the Expression

100

Evaluate x+7 when x=5.

12

200

Evaluate 3a-2 when a=4

10

300

Evaluate 2x²+3 when x=3

21

400

Evaluate 3a-2b+5 when a=4 and b=-2.

21

500

Evaluate [2x²-3y] / (x+1) when x=2 and y=-4

20/3

Combine Like Terms

100

Simplify: 3x+5x.

8x

200

Simplify: 7y+3-2y.

5y+3

300

Simplify: 4a+7-2a+5.

2a+12

400

Simplify: 6x-4+3x+9-2x.

7x+5

500

Simplify: 5x-3y+7-2x+6y-11.

3x+3y-4

Like Terms Expand the Brackets

100

Expand: 2(x+3).

2x+6

200

Expand: 3(y-4)

3y-12

300

Expand: -2(3x+5).

-6x - 10

400

Expand and simplify: 4(2x-3)+5.

8x-7

500

Expand and simplify: 3(2x-5)-2(x+4).

4x-23