Solving Equations and Inequalities

22.95 = 16.15 + 4x

• x = 9.775

• x = 4.2

• x = 1.7

• x = 2.2

Which of the following represents the solution to the inequality shown below?

Which of the following represents the solution to the inequality shown below?

• x < -3

• x < -6

• x > -3

• x > -6

Which of the following represents the solution to the inequality shown below?

Justin and Sean have a classics album collection. The number of albums in Justin’s collection can be represented by x. The number of albums in Sean’s collection is 5 times the number in Justin’s collection. The total number of albums in both collections is 78. What is x, the number of albums in Justin’s collection?

• x = 6

• x = 15.6

• x = 13

• x = 78

Grace, Maci, and Kendra all have a large collection of earrings.

 The number of pairs of earrings in Grace’s collection is represented by x.

 The number of pairs of earrings in Maci’s collection is three times the number of pairs in Grace’s collection.

 Kendra has 4 earrings in her collection.

 The total number of pairs of earrings in all three girls’ collections is 52.

How many pairs of earrings are in Maci’s collection?

• x = 48

• x = 12

• x = 36

• x = 4

4x + 2(x - 6) = 12

• x = 6

• x = 4

• x = 2

• x = -2

solve 5(6 + 3r) + 7 ≥ 127

• r ≤ 6

• r ≥ 6

• r ≤ -6

• r ≥ -6

2(2x + 3) = -6(x + 9)

• x = 1.2

• x = 6

• x = -6

• x = 7.5

Solve the equation for x.
-8x - 8 + 3x - 6 = -3x + 2

• x = -8

• x = 8

• x = 2

• x = -2