One Variable Equations Review

Math Facts and Definitions

100

In the expression: 4x + 12 what is my coefficient?

4

200

In the expression: 5x + 3 what is my constant?

3

300

How many terms are in 5y²x

1

400

Which fraction is NOT equal to -3/4?

a) 6/-8            b) -9/12

c) -12/-16             d) -(-15/-20)

c) -12/-16

500

Name the three different types of equations and the amount of solutions each type has

Identity: Infinte solutions

Conditional: One solution

Inconsistent: no solutions

Evaluating Expressions

100

x + 9 for x = -12

-3

200

-2x + 5 for x=3

-1

300

t³ - 6 for t = 2

2

400

2x² + 5x - 7 for x = -2

-9

500

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

84

Solving equations with variable on one side

100

4x - 10 = 18

x = 7

200

(3/4)(x) - 1 = 5

x = 8

300

(k + 8) / 3 = 2

k = -2

400

-4x + 15 + 3x + 25 = 50

x = -10

500

6(x + 2) - 4x = -18

x = 15

Solving equations with variable on both sides

100

5x + 6 = 2x + 30

x = 8

200

4(w - 9) = w + 9

w = 15

300

1/3x + 2= x - 4

x = 9

400

2k - 6k + 9 = -6 - 8k - 1

k = -4

500

3(p + 4)=15 + p − (5p − 18)

p = 3

How many solutions?

100

2x = 2x

Infinite number of solutions

200

2x + 1 = 3x - 2

One solution

300

3x + 5 = 3(x - 2)

no solutions

400

3(x + 5) - 1 = 3x + 14

Infinite solutions

500

4(n + 1) + 2(n + 3) = 11n - (5n - 2)

No solutions