To solve the equation \( 5 + \frac{4}{7}(21 + 3x) = 41 \), follow these steps:
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First, isolate the term with \( x \): \[ \frac{4}{7}(21 + 3x) = 41 - 5 \] \[ \frac{4}{7}(21 + 3x) = 36 \]
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Next, eliminate the fraction by multiplying both sides by \( 7 \): \[ 4(21 + 3x) = 36 \times 7 \] \[ 4(21 + 3x) = 252 \]
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Now divide both sides by \( 4 \): \[ 21 + 3x = \frac{252}{4} \] \[ 21 + 3x = 63 \]
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Subtract \( 21 \) from both sides: \[ 3x = 63 - 21 \] \[ 3x = 42 \]
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Finally, divide by \( 3 \): \[ x = \frac{42}{3} \] \[ x = 14 \]
So, the solution is \( x = 14 \).