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Evaluating expression

100

2x^3 - 8y^4 

if x=2

y= -1

24

200

|-a + b^2 x c | 

if a=-2 b=3 c=4

28

300

abc+5 / 5a

a=2 b=15  c=-1

3.5 

400

W^2 + 2xy 

x=-3 w=-2 y=1

-2

500

compound inequality

-8x - 22 > 10 or 16x - 14 >18

 x> -4 

x>2 

translating expressions

100

three time the difference of a number and 1 increased by 10. 

3(7x + 10)

200

four more than the quotient of a number 5 is 40 

n/5 + 4 =40 

300

Proportions 

6/ a-6 = 3/a-3

a = -1  

400

4/18 = 8/2x + 16 

x= 10 

500

absolute value equations 

|x + 1| = 6 

x= 5

simplifying expression

100

n + 4 - 20 + 7n 

-6n - 16 

200

2(x-4) - (x+12) 

3x - 4

300

Multi variable equations 

a = bcd solve for c 

a/bd = c 

400

ab + cd = e 

solve for c 

c = e-ab/d

500

absolute value inequalities 

|3x + 12| >_ 9 or 3x+12 <_ -9 

x>_ -1 

x < _ 7

Two-step equations

100

4x - 5 =15 

x = 5 

200

x/4 + 2 = 10 

x=32

300

3/4x - 6 = 3 

x=12

400

x -17 / 3 = -3 

x=8 

500

x >_ -1 

x<_ 7 

in interval notation 

[ -1, infinite) 

(infinite,7)

solving an graphing inequalities

100

4x - 1 ≤ -37 

x ≤ -9 

200

18 -2x > 4

x > 7

300

word problems 

the sum of two consecutive numbers is 71. find the numbers. 

1 =35

2= 36

400

the sum of two consecutive odd numbers is 44. find the numbers. 

1 = 22

2= 23

500

the sum of two consecutive even numbers is 26. find the numbers. 

1= 12

2= 14