8th Review 11/19

Solving Equations

100

-2x+1=-4x+9

4

200

x-4=-5x-28

-4

300

-2(3n+9)=-30

2

400

2(x+8)=8(x+1)

2

500

5m+2m+m+8=80

9

Simplifying Expressions

100

9x+5-3x-8

6x-3

200

4(x+5)-3x+7

x+27

300

5y-9y+6x-2y

-6y+6x

400

2(x+1)+4(x-1)

6x-2

500

-5(2f-7)+10f-30

5

Operations with Fractions

100

4/5+(-2/3)

2/15

200

 

-1/2-3/4

\-5/4 or -1 1/4

300

-1 1/3*2/5

-8/15

400

-2 1/2 /1 1/4

-20/10 or -2

500

-4/5-(-2/3)

-22/15 or -1 7/22

Determine Number of Solutions

100

2x-3=2x+5

No solution

200

-5y-3=4y+2

one solution

300

-4x+3=-4x+3

Infinite solutions

400

2(x+4)=-5(x=1)

One solution

500

16+2(5x+1)=10x

No solution

Operations with Integers

100

-8+5

-3

200

-7-5

-12

300

-4*5

-20

400

(-18)/(-2)

9

500

12-(-5)*4

32