Unit 1 review
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This document reviews key concepts from Unit 1 including: adding, subtracting, multiplying, and dividing integers; order of operations with expressions containing multiple operations; evaluating expressions by substituting values for variables; combining like terms using the distributive property; and determining if proportions are true or false and solving proportions. It provides examples of each concept to practice, with expressions containing integers, variables, operations, and evaluating expressions by substituting numeric values for variables.
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Unit 1 review
- 3. Order of Operations7 ÷ (10 + 3 - 6)=9 ÷ 9 x (8 + 7)=4 ÷ (8 – 6) ÷ 2=10 ÷ 5 x 3 x 3=
- 4. Evaluating ExpressionsFind the value of 2x – 3 if x = 2Simplify -4 + 5y if y = -1Evaluate 9 + 8x – 6y if x = 1 and y = -2Evaluate -4 + 3x + x if x = 0
- 5. Combining Like Terms& Distributive Property-3(x + 5) = (5 + y)2 = 2x + 3(x + 3)=4 + 5x – 1(x + 2)=