Explain how to determine if the two expressions are equivalent using x = 6 and x = 2. 2x + 4 – 1 3 + x + x
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12
1. X = 6
2x + 4 - 13 + X + X
=> 2(6) + 4 - 13 + 6 + 6
=> 12 + 4 - 13 + 6 + 6
=> 12 + 4 + 6 + 6 - 13
=> 28 - 13
=> 15
2. X = 2
2x + 4 - 13 + X + X
=> 2(2) + 4 - 13 + 2 + 2
=> 4 + 4 + 2 + 2 - 13
=> 12 - 13
=> -1
2x + 4 - 13 + X + X
=> 2(6) + 4 - 13 + 6 + 6
=> 12 + 4 - 13 + 6 + 6
=> 12 + 4 + 6 + 6 - 13
=> 28 - 13
=> 15
2. X = 2
2x + 4 - 13 + X + X
=> 2(2) + 4 - 13 + 2 + 2
=> 4 + 4 + 2 + 2 - 13
=> 12 - 13
=> -1
Answered by
10
Answer:
Sample Response: If both expressions have the same value after substituting and simplifying for x = 6 and x = 2, then they are equivalent. Substitute 6 for each variable, x, in both expressions. Use the order of operations to simplify both expressions. The value of both expressions is 15. Now, substitute 2 for each variable, x, in both expressions. Use the order of operations to simplify both expressions. The value of both expressions is 7. Therefore, the expressions are equivalent.
Step-by-step explanation:
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