To solve for \( h \), we begin from the equation you've derived:
\[ 12 + 5h = 4 \]
Now, we can isolate \( h \) by following these steps:
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Subtract 12 from both sides: \[ 5h = 4 - 12 \] This simplifies to: \[ 5h = -8 \]
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Now, divide both sides by 5 to solve for \( h \): \[ h = \frac{-8}{5} \]
Thus, the value of \( h \) is: \[ h = -\frac{8}{5} \]