To solve the equation \(-2x + 902 = 1,518\), we first need to isolate \(x\).
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Subtract 902 from both sides: \[ -2x = 1,518 - 902 \] \[ -2x = 616 \]
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Divide both sides by -2: \[ x = \frac{616}{-2} \] \[ x = -308 \]
Given the options, the answer closest to \(-308\) would be \(-300\).
Thus, the best estimate for \(x\) is:
−300