Chapter 1

absolute value

100

l-4xl = 32

-8,8

200

2l3x - 2l = 14

-5/3, 3

300

l3x + 5l = 5x + 2

3/2

400

3l4w - 1l - 5 = 10

-1, 3/2

500

1/4l4x + 7l = 8x + 16

-71/36

simplify by combining like terms

100

5a-a

5

200

6r+3s+2s+4r

10r+5s

300

-(2x+y)-2(-x-y)

y

400

x + x²/2 + 2x² - x

5x²/2

500

1/2(x²-y²) - 5/2(x²-y²)

-2x² + 2y²

evaluate each expression by plugging in the variable

100

x + 2x - x - 1

x = 2

3

200

2z + 3 + 5 - 3z

z = -3

11

300

3(2a + 5) + 2(3 - a)

a = 4

37

400

y² + 3

y = √ 7

10

500

5(2k - 3) - 3(k + 4) / 3k + 2

k = -2

10.25

solve each inequality

100

-7k < 63

k > -9

200

57 - 4t > 13

t < 11

300

14 - 4y > 38

y < -6

400

2(m - 3) + 7 < 21

m < 10

500

-2(w + 4) + 9 < -11

w > 6

determine if the solution is sometime, never, or always true

100

5x + 3 - 2x = 7x + 3

sometimes

200

2/3x + 4 = 2x

sometimes 

300

6x - 13 < 6(x - 2)

always

400

-7(3x - 7) + 21x > 50

never

500

9x + 2(2 + x) < 5 + 9x

sometimes