To solve the equation \(-\frac{x}{2.9} = -3\), we can follow these steps:
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Eliminate the negative sign by multiplying both sides by -1: \[ \frac{x}{2.9} = 3 \]
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Multiply both sides by 2.9 to isolate \(x\): \[ x = 3 \times 2.9 \]
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Calculate \(3 \times 2.9\): \[ 3 \times 2.9 = 8.7 \]
Therefore, the solution to the equation is \(x = 8.7\).
The correct response is: 8.7