First Test Review

Solve for x

100

4x=148

37

200

x/3+4=2

-6

300

3x+6=x-8

-7

400

4(x/2-3)=12

12

500

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

-27

Solve for y

100

x=y-5

y=x+5

200

6x = 3y - 12

y=2x+4

300

x = x+2y-4

y=2

400

3x-2y+2= -3x+y-7

y=2x+3

500

3x-2=(y-x)/3

y=10x-6

Proportions

100

x/3=2/6

x=1

200

4.5/x=40.5/18

x=2

300

(x+2)/2=5/11

x=-12/11

400

4/(x+8)=10.4/5.2

x=-6

500

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

x=-7

Percent

100

What is 28% of 105?

29.4

200

What percent of 105 is 33?

31.4%

300

106% of what number is 106?

100

400

30% of what number is 10?

33.3333...

500

What percent of 20 is 306?

1530%

Absolute Values

100

abs(x)=3

x=+-3

200

abs(x)+8=6

No solution

300

2abs(x-4)=10

x=9,-1

400

-2abs(3x+2)=-16

x=2,-10/3

500

abs(x)=x+1

x=-1/2