Evaluating expressions

Combine Like Terms

100

w + w + w

3w

200

b + 7b - 3b

5b

300

3x - y + 3x

- y

400

-3y² - 3y² + x + 3x

-6y² + 4x

500

3xy + yx + 2x + 3y + xy

4xy + yx + 2x + 3y

Evaluating Expressions

100

What is the value of the expression when y = 7 and z = 5 ?

y + 10z

57

200

What is the value of the expression when z = 2 ?

5z² - z - 4

14

300

What is the value of the expression when x = 4 and y = 4 ?

3x + 7y

40

400

What is the value of the expression when y = 6 ?

y² - 5y - 4

2

500

What is the value of the expression when y = 3 ?

8y² - y - 8

61

Distribution

100

-3( -8x + 1 )

24x - 3

200

4( -3x - 4 ) - 9x

-21x - 16

300

-( 3c - 8) - 3c

-6c + 8

400

-6(-3p + 6) + 3(-8p + 5)

-6p - 21

500

-2(3y + z) - 7z - 4(3z + 8y)

-38y - 21z

Solving for the variable

100

Find the value of x in the equation:

6 + x = 19

x = 13

200

Find the value of x in the equation:

x - 17 = 12

x = 29

300

Find the value of x in the equation:

10x = 80

x = 8

400

Find the value of x in the equation:

5 = x ÷ 6

x = 30

500

Find the value of x in the equation:

x÷4 - 23 = - 17

x = 24

Exponent Rules

100

3² x 3⁵

3⁷

200

(6⁵)²

6¹⁰

300

6⁵ ÷  6³

6²

400

(3⁵ x 3⁶)²

3²²

500

 (7²)⁵   ÷    7⁴

7⁶