Equations: Skills & Review

Add/Sub Integers

100

(-9) + 14

5

200

(-27) - 24

-51

300

15 - 13 + 2

4

400

(-3) + 5 + (-5) + 12

9

500

1.7 - (-0.8) + 4.013

6.513

Linear Equations

100

What does the letter m stand for in the equation y = mx + b?

slope

200

What does the letter b stand for in the equation y = mx + b?

y-intercept; (0, b)

300

Graph this line: y = -2x + 3

graph

400

Is the point (0, 4) on this line?  

y = 3x - 2

No > (0, -2)

500

Graph this line.

y = 2/3 x - 3

graph

Distrib Property

100

-6(a + 8)

-6a - 48

200

-4(-8x - 8)

32x + 32

300

-7(5k - 4)

-35K + 28

400

3(5 + 5x)

15 + 15x?

500

(1 + 9x)(-10)

-10 - 90x

Combine Like Terms

100

12r - 8 - 12

12r - 20

200

n + 4 - 9 - 5n

-4n - 5

300

-3x - 9 + 15x

12x - 9

400

-2n - (9 - 10n)

8n - 9

500

-7(n + 3) - 8(1 + 8n)

-71n - 29

Expressions and Equations

100

What is the value of n in the equation 2n + 1 = 21

10

200

What is the value of the expression: 2 + 3 x 3 + |-4|?

15

300

Find the value of a in the equation: 3a + 2 = a - 6

a = -4

400

(-4)(3)(-1)(-2)

-24

500

Simplify the expression -4x-(-x)

-3x