Unit A Review

Solving Equations

100

2x=10

x=5

200

20+x=32

x=12

300

7x-12=51

x=9

400

4x+8+6x-5=33

x=3

500

2(x-5)=23+3x

x=-33

Literal Equations

100

a+b=c

Solve for b

b= a-c

200

kh=3

Solve for h

h=3/k

300

3q+5=2t

Solve for q

q=(2t-5)/3

400

t(1+r)=7x

Solve for t

t=7x/(1+r)

500

2q+13-q=st

Solve for q

q=st-13

Absolute Value

100

lxl=13

x=13, -13

200

lxl= -5

No solution

300

lb-12l=15

b=27, -3

400

l2x+3l= 23

x=10, -13

500

5-3lx+2l=-34

x=11, -15

Inequalities

100

5x>20

x>4

200

x+15 <21

x<6

300

-5x>30

x<-6

400

−9 ≤ 7 − 8v

2 ≤ v

500

18 ≤ 3(b − 4)

10 ≤b