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QuestionMathematics

If x= 2, what is the value of 8x−x?
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Answer

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Step 1:
I'll solve this step-by-step following the specified LaTeX formatting guidelines:

Step 2:
: Substitute the given value of x

• We know that $$x = 2
• We need to evaluate the expression 8x - x

Step 3:
: Replace x with 2 in the expression

• $$8x - x$$ becomes $$8(2) - (2)

Step 4:
: Multiply 8 by 2

• $$8(2) = 16

Step 5:
: Subtract 2 from 16

• $$16 - 2 = 14

Final Answer

Key Insights: - The problem involves simple substitution and arithmetic - First multiply 8 \times 2 - Then subtract 2 from the result - Always substitute the given value of the variable consistently