Listen
[tex]$7+7+(-1)=$
[/tex]
A) 7
B) 10
C) 16
D) 13
Answer (2)
Evaluate the expression: 7 + 7 + ( − 1 ) = 13 .
Compare the result with the given options.
Select the correct option: D) 13.
The final answer is 13 .
Explanation
Understanding the Problem We are asked to evaluate the expression 7 + 7 + ( − 1 ) and choose the correct answer from the given options.
Evaluating the Expression To evaluate the expression, we perform the addition and subtraction from left to right: 7 + 7 + ( − 1 ) = 14 + ( − 1 ) = 14 − 1 = 13
Selecting the Correct Option Now, we compare the result, 13, with the given options: A) 7 B) 10 C) 16 D) 13 The correct answer is D) 13.
Final Answer The expression 7 + 7 + ( − 1 ) evaluates to 13. Therefore, the correct option is D.
Examples
In everyday life, you might use addition and subtraction to calculate your bank balance. If you start with $7, deposit another $7, and then withdraw $1, you would have $13 remaining. This simple arithmetic is fundamental to managing finances and understanding basic transactions.
The expression 7 + 7 + ( − 1 ) evaluates to 13, so the correct answer is D) 13. This is found by first adding 7 and 7 to get 14, then subtracting 1. Therefore, the correct option is D.)
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