7th Grade Topic 4 & 5 Final

Evaluate Expressions

100

Evaluate:    3x - 7b   when x=8 and b=3

3

200

Evaluate:    4a +3b     when a=5 and b=7

41

300

Evaluate:     -3a - 7b + 2     when a=-3 and b=2

5

400

Evaluate:    -a - 5b +2a    when a=2 and b=4

-18

500

Evaluate:    16- 2y + x²    when x=3 and y= -2

29

Combine Like Terms

100

Combine Like Terms:

-x +8x

7x

200

Combine Like Terms:

-4k + 11 - 4k + 14

-8k + 25

300

Combine Like Terms:

-1 - w - 2w +7 -19

-3w -13

400

Combine Like Terms

2/5x - 7/5x +5 - 14

-3/5x -9

500

Combine Like Terms

-3.7 +5g +4k +11.1 -10g

-5g +4k +7.4

Distributive Property

100

-2 (-6x+7)

12x-14

200

1.2(-9x - 6.3)

-10.8x -7.56

300

2/3(12k +6)

8k + 4

400

-(k-2)

-k+2

500

2/5(1/3w + 10)

2/15w + 4

One Step Equations

100

x- 7 =-12

x= -5

200

-6x = -48

x= 8

300

x/5 = -7

x= -35

400

5.2 + x = -7.8

x= -13

500

4/7x = 8

x=14

Two Step Equations

100

-2x +1 = - 13

x=7

200

-3 + n/2 = 9

n= 24

300

3a - 8 =88

a= 32

400

x/-2 -7=4

x= -22

500

2/3x -4 =6

x=15