Unit 1 Test Review

Solve the equation

100

12=x+12

0

200

-5+5x=-(1-5x)

No Solution 

300

6a-1=7a+2

a=-3

400

6k-3+2k=8k-3

R

500

-2(1+5a)-4(4a+3)=64

a=-3

Solve the equation 2.0

100

28-6(2y+4)=124

y=-10

200

5(x+2)-3=5x-3

no solution

300

-2(-6x-7)=27-x

x=1

400

2(7+4x)+3(3x-1)=11

x=0

500

6(p+3)+4=2(1-2p)

p=-2

mixed

100

Describe the values of c for which the equation has no solution. 3x-5=3x-c

c=5

200

Describe the values of c for which the equation has no solution. lx-7l=c

c is any negative number

300

Write an equation with variables on both sides that has no solution.

2(x+3)=2x+6

400

A mechanic charges $43 per hour for labor and $217 for parts. The total bill is $432. How many hours did the mechanic work?

5 hours

500

Gym A charges a $50 membership fee and $20 per month. Gym B charges $10 membership fee and $30 per month. After how many months is the total cost the same at both gyms?

4 months

Solve each absolute value equation

100

lnl=7

n=7 or n=-7

200

lvl+2=7

v=-5 or v=5

300

2-8lxl=-6

x=-1 or x=1

400

l6n-9l=-51

no solution

500

l-4x+8l=32

x=-6 or x=4

mixed 2.0

100

l-2v-6l=14

v=-10 or v=4

200

l7-vl-5=11

v=-9 or v=23

300

-n+7(n+3)=21+6

R

400

-6(6a-6)=2-2a

a=1

500

l2v+4l=6

v=1 or v=-5