7th Algebra Practice

Simplifying Expressions

100

10 - 12

-2

200

3k - 3k

0 or 0k

300

2y - 1y + 3y

4y

400

2y-5+1/3(6)

2y-3

500

4-3a-1/2(4a)+2

6-5a

Combining Like Terms

100

(3x + 2) + (2x - 1)

5x + 1

200

(-4x - 1) + (4x + 3)

2 (or, 0x + 2)

300

(3x + 2) - (3x + 2)

0

400

(4x + 4) - (x - 3)

3x + 7

500

(-x + 1) - (-3x + 2)

2x - 1

One-Variable Equations

100

z+5=-4

z=-9

200

4+m-1=9

m=6

300

15-9.1=v+1.8

v=4.1

400

8(1/2)+w=12(1/3)

w=0

500

x+3(2.4)=10-7.1

x=-4.3

More One-Variable Equations

100

26 = 2 + 4x

x=6

200

(n-5)/3=7

n=26

300

-1.3g + 1.9 = -11.1

g = 10

400

-m - 7/8 = -10

m = 73/8 or 9 1/8

500

− 0 . 4 ( m + 3 ) = 4

m=-13

Factoring and Distributing

100

-8(-b-4)

8b+32

200

6x-9+3z

3(2x-3+z)

300

-2.3(8-0.2x)

-18.4+0.46x

400

qr-5qrs

qr(1-5s)

500

-8(-5b+7)+5

40b-51