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To solve this algebraic problem, follow these steps:
Since the problem is a multiple-choice question, review the available choices to select the correct answer. The expression simplifies to , which corresponds to choice 3: .
Therefore, the solution to the problem is .
Are the expressions the same or not?
\( 3+3+3+3 \)
\( 3\times4 \)
Because you're adding two x's, not two numbers! The variable x represents an unknown value, so x + x means that unknown value plus itself, which equals 2 times that unknown value = 2x.
When you see just x, there's an invisible coefficient of 1! So x + x really means 1x + 1x, and 1 + 1 = 2, giving you 2x.
With numbers like 2 + 2, you get a final answer of 4. With variables like x + x, you can only simplify to 2x because you don't know what x equals!
No! You can only combine like terms - variables with the exact same letter and power. Since x and y are different variables, x + y stays as x + y.
Same rule applies! Add the coefficients: 3 + 2 = 5, so 3x + 2x = 5x. The variable part stays the same, only the numbers in front get added.
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