In Exercises 1–26, solve and check each linear equation. 4(x + 9) = x

Solve each radical equation in Exercises 11–30. Check all proposed solutions. √(6x + 1) = x - 1

Graph each equation in Exercises 13 - 28. Let x = - 3, - 2, - 1, 0, 1, 2, 3

y = x + 2

Solve each equation. Then state whether the equation is an identity, a conditional equation, or an inconsistent equation. 7(x-4) = x + 2

Including a 10.5% hotel tax, your room in San Diego cost $216.58 per night. Find the nightly cost before the tax was added.

Find each product and write the result in standard form. (- 5 + i)(- 5 - i)

In Exercises 15–26, use graphs to find each set. (- 3, 0) ⋃ [- 1, 2]

Solve each equation in Exercises 15–34 by the square root property. 3x² - 1 = 47

Including a 17.4% hotel tax, your room in Chicago cost $287.63 per night. Find the nightly cost before the tax was added.

Solve each equation. Then state whether the equation is an identity, a conditional equation, or an inconsistent equation. 2(x-4)+3(x+5)=2x-2

Exercises 19–20 involve markup, the amount added to the dealer's cost of an item to arrive at the selling price of that item. The selling price of a refrigerator is $1198. If the markup is 25% of the dealer's cost, what is the dealer's cost of the refrigerator?

Solve each radical equation in Exercises 11–30. Check all proposed solutions. $\sqrt{2x + 19} - 8 = x$

Solve each equation in Exercises 15–34 by the square root property. $2x^2-5=-55$

In Exercises 15–26, use graphs to find each set. (- ∞, 5) ∩ [1, 8)

Find each product and write the result in standard form. (2 + 3i)²

Graph each equation in Exercises 13 - 28. Let x = - 3, - 2, - 1, 0, 1, 2, 3

y = -(1/2)x

In Exercises 9–20, find each product and write the result in standard form. (5 - 2i)²

Solve and check each linear equation. 2(x - 1) + 3 = x - 3(x + 1)

Graph each equation in Exercises 13 - 28. Let x = - 3, - 2, - 1, 0, 1, 2, 3

y = - (1/2)x + 2

In Exercises 15–26, use graphs to find each set. (- ∞, 5) ⋃ [1, 8)

You invested $20,000 in two accounts paying 1.45% and 1.59% annual interest. If the total interest earned for the year was $307.50, how much was invested at each rate?

In Exercises 21–28, divide and express the result in standard form. 2/(3 - i)

Solve each equation in Exercises 15–34 by the square root property. (x + 2)² = 25

You invested $30,000 in two accounts paying 2.19% and 2.45% annual interest. If the total interest earned for the year was $705.88, how much was invested at each rate?

Solve each equation. Then state whether the equation is an identity, a conditional equation, or an inconsistent equation. 7x + 13 = 2(2x-5) + 3x + 23

In Exercises 1–26, solve and check each linear equation. 2 - (7x + 5) = 13 - 3x

Graph each equation in Exercises 13 - 28. Let x = - 3, - 2, - 1, 0, 1, 2, 3

y = -2|x|

In Exercises 1–26, solve and check each linear equation. 16 = 3(x - 1) - (x - 7)

In Exercises 21–28, divide and express the result in standard form. 2i/(1 + i)

Solve each equation in Exercises 15–34 by the square root property. $3(x-4{)}^2=15$