Section 2.4

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Section 2.4 Answer: Given statement: 5 ( x −1) = 4 x + 13 Hence, the final solution is x=18 respectively. Answer: Use distributive property on left hand side of the equation, 3(2 x +11) =9 6 x +33=9. Use subtraction property of equality , 6 x + 33 - 33 = 9 − 33 [Subtract 33 from each side] 6 x =−24 [Simplify] Use division property of equality, 6 x 6 =−246
[Divide each side by 6] x =−4 [Simplify] Final Answer: The solution of given equation is −4. Answer: Addition property of equality is used here. Answer: Symmetric property of equality is used here. Answer: Transitive property of equality is used here. Answer: If m ∠ 1= m ∠ 2, then m ∠ 2= m ∠ 1. Answer: The statement will be: If AB = CD then 5 ⋅ AB =5 ⋅ CD.
Answer: The complete statement is M ∠ AB C = m ∠ CBA .
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