0. Review of College Algebra

Simplify each expression. See Example 8. -12y + 4y + 3y + 2y

Simplify each expression. See Example 8. -6p + 5 - 4p + 6 + 11p

Simplify each expression. See Example 8. 3(k + 2) - 5k + 6 + 3

Simplify each expression. See Example 8. 10 - (4y + 8)

Simplify each expression. See Example 8. 10x (3)(y)

Simplify each expression. See Example 8. -2⁄3 (12w) (7z)

Simplify each expression. See Example 8. 3(m - 4) - 2(m + 1)

Simplify each expression. See Example 8. 0.25(8 + 4p) - 0.5(6 + 2p)

Determine whether each equation is an identity, a conditional equation, or a contradiction. Give the solution set. See Example 4. 4(2x + 7) = 2x + 22 + 3(2x + 2)

CONCEPT PREVIEW Fill in the blank(s) to correctly complete each sentence. The opposite, or negative, of a number is its _______.

For what value(s) of x is |x| = 4 true?

CONCEPT PREVIEW Which one is not a linear equation? A. 5x + 7 (x - 1) = -3x B. 9x² - 4x + 3 = 0 C. 7x + 8x = 13 D. 0.04x - 0.08x = 0.40

Solve each linear equation. See Examples 1–3. 7x + 8 = 1

Solve each linear equation. See Examples 1–3. 7x - 5x + 15 = x + 8