Questions: 398 is 277 plus r

398 is 277 plus r
Transcript text: 398 is 277 plus $r$
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Solution

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Solution Steps

To convert the given sentence into an equation, identify the mathematical operations and the variables involved. Here, "398 is 277 plus \( r \)" translates to the equation \( 398 = 277 + r \).

Step 1: Identify the Given Values

We are given the equation in words: "398 is 277 plus \( r \)". This translates to the mathematical equation: \[ 398 = 277 + r \]

Step 2: Isolate the Variable

To solve for \( r \), we need to isolate \( r \) on one side of the equation. We do this by subtracting 277 from both sides: \[ r = 398 - 277 \]

Step 3: Perform the Calculation

Subtract 277 from 398: \[ r = 398 - 277 = 121 \]

Final Answer

The value of \( r \) is: \[ \boxed{r = 121} \]

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