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Mathematics, 08.10.2020 07:01 23gordns
Justifying Algebraic Equations
Use the properties from the word bank to justify each step in solving the following equations.
Word Bank:
Addition Property of Equality Subtraction Property of Equality
Multiplication Property of Equality Division Property of Equality
Distributive Property Combine Like Terms
Symmetrical Property
Equation Steps Property
Given 2( β 9) = β10, Prove x = 4
1. 2( β 9) = β10 1.
2. 2 β 18 = β10 2.
3. 2 = 8 3.
4. = 4 4.
Equation Steps Property
Given 10 β 4 = 2 β 20, Prove k = β 2
1. 10 β 4 = 2 β 20 1.
2. 8 β 4 = β20 2.
3. 8 = β16 3.
4. = β2 4.
Equation Steps Property
Given 5 β 42 = 12, Prove n = β 6
1. 5 β 42 = 12 1.
2. β42 = 7 2.
3. β6 = 3.
4. = β6 4.
4.
5.
Equation Steps Property
Given β8( + 1) = β5( + 10), Prove w = 14
1. 1.
2. β8 β 8 = β5 β 50 2.
3. β3 β 8 = β50 3.
4. β3 = β42 4.
5. = 14 5.
Equation Steps Property
Given 14 β 2( + 8) = 5 β (3 β 34), Prove x = β 9
1. 1.
2. 14 β 2 β 16 = 5 β 3 + 34 2.
3. β2 β 2 = 2 + 34 3.
4. β4 β 2 = 34 4.
5. β4 = 36 5.
6. = β9
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Justifying Algebraic Equations
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