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Kristy asks Lonnie to think of a number, add 3 to it, multiply the sum by 2 , and then subtract 6 . Let 
n stand for Lonnie's starting number. Which expression represents Lonnie's final number?

{:[2(n+3)-6],[2(n+3-6)],[n+3×2-6],[2n+3-6]:}

Kristy asks Lonnie to think of a number, add 33 to it, multiply the sum by 22 , and then subtract 66 . Let n n stand for Lonnie's starting number. Which expression represents Lonnie's final number?\newline2(n+3)62(n+36)n+3×262n+36 \begin{array}{c} 2(n+3)-6 \\ 2(n+3-6) \\ n+3 \times 2-6 \\ 2 n+3-6 \end{array} \newline

Full solution

Q. Kristy asks Lonnie to think of a number, add 33 to it, multiply the sum by 22 , and then subtract 66 . Let n n stand for Lonnie's starting number. Which expression represents Lonnie's final number?\newline2(n+3)62(n+36)n+3×262n+36 \begin{array}{c} 2(n+3)-6 \\ 2(n+3-6) \\ n+3 \times 2-6 \\ 2 n+3-6 \end{array} \newline
  1. Understand the problem: Step 11: Understand the problem.\newlineKristy's instructions are to take a number nn, add 33 to it, multiply the result by 22, and then subtract 66. We need to translate this into a mathematical expression.
  2. Translate the instructions: Step 22: Translate the instructions into an expression.\newlineStart with nn, add 33: n+3n + 3.\newlineMultiply the sum by 22: 2(n+3)2(n + 3).\newlineSubtract 66 from the result: 2(n+3)62(n + 3) - 6.
  3. Match with choices: Step 33: Match the expression with the given choices.\newlineThe correct expression based on the instructions is 2(n+3)62(n + 3) - 6. Now, let's check the choices to find a match.\newlineChoices are: 2(n+3)62(n+3)-6, 2(n+36)2(n+3-6), n+3×26n+3\times 2-6, 2n+362n+3-6.
  4. Identify correct choice: Step 44: Identify the correct choice. The expression 2(n+3)62(n+3)-6 exactly matches our derived expression from Step 22.