Prerequisite Skills VOCABULARY CHECK Copy and complete using a review word from the list; perimeter, distributive property, like terms, inequality, reciprocal.

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Prerequisite Skills VOCABULARY CHECK Copy and complete using a review word from the list; perimeter, distributive property, like terms, inequality, reciprocal. 1. The ? of a figure is the sum of its side lengths. 2. The four ? symbols are,, and. < > ANSWER inequality perimeter ANSWER

Prerequisite Skills VOCABULARY CHECK 3. To divide by a fraction, you multiply by its ?. ANSWER reciprocal 4. Terms that have identical variable parts raised to the same power are ?. like terms ANSWER Copy and complete using a review word from the list; perimeter, distributive property, like terms, inequality, reciprocal.

Prerequisite Skills SKILL CHECK Simplify the expression by combining like terms – 2x x x – 1 7. –2 (3x + 1) – (x – 4) – x ANSWER –2x + 7 ANSWER 5x + 4 ANSWER –6x – 4 ANSWER 4x – 20

Prerequisite Skills SKILL CHECK Solve the equation. Check your answer. 9. 2x – 1 = –3x – 2 = – x = = 2x ANSWER –3 ANSWER –8 ANSWER 5

Prerequisite Skills SKILL CHECK Solve the equation. Check your answer. 13. –5x + 6 = – – x = – = 4x x – 5 = 10 3 ANSWER 11 ANSWER 4 5

Prerequisite Skills SKILL CHECK Solve the inequality. Then graph its solution. 17. x + 5 < x > x – 4 – 6 > 20. – 4 + x – 9 < x < 13 ANSWER x – 2 ANSWER > x > 2 ANSWER < x – 5

Prerequisite Skills SKILL CHECK Solve the inequality. Then graph its solution x  30 > 23. x > – 6x 54 < 24. x < x 6 ANSWER > x – 9 ANSWER > x > 25 ANSWER < x 18