To solve the equation \(10x + 5 = 7x - 16\), follow these steps:
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Subtract \(7x\) from both sides: \[ 10x - 7x + 5 = -16 \] This simplifies to: \[ 3x + 5 = -16 \]
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Next, subtract 5 from both sides: \[ 3x = -16 - 5 \] This simplifies to: \[ 3x = -21 \]
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Finally, divide both sides by 3: \[ x = \frac{-21}{3} \] This simplifies to: \[ x = -7 \]
Thus, the solution is: \[ \boxed{-7} \]