Intro to Algebra Solving Review

Equations

100

42 = - 2x + 6

- 18

200

2x - 7 + 5x = 0

1

300

5(1 - 2x) + 8x = 15

- 5

400

3/4 = 3/8 x- 3/2 

6

500

2(.9x + 1.4) - 2.5x = 2.1

1

Inequalities

100

2x + 21 < 11

x < - 5

200

-4(x + 2) > 6

x < - 7/2 

300

1/4 x + 2/3 < 3/4 

x < 1/3

400

3 + 2(x + 4) > 3

x > -4

500

- 2/3 x + 1/2 > 1/3

x<  1/4 

Literal Equations

100

r - 2z = 14  for z

z = r/2 - 7

200

V = 1/3 bh   solve for b

b = (3V)/h

300

P = 2(L+ w)  for L

L= p/2 - w

400

D = m/3 + 4   solve for m

m = 4d - 12

500

3x + 7y = 14 for y

y = -3/7 x + 2

Wildcard

100

What is the correct name for the 2 in the expression: 

            3x + 2

constant

200

What is the correct name for the 2 in the term: 

2x

coefficient

300

2(4 - x) - 3x < 7

x > 1/5

400

5 = 3(x + 2) + x - 4

3/4

500

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

3