To solve the equation \( 3(b - 4) = -3 \), follow these steps:
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Distribute the \( 3 \) on the left side: \[ 3b - 12 = -3 \]
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Add \( 12 \) to both sides to isolate the term with \( b \): \[ 3b - 12 + 12 = -3 + 12 \] This simplifies to: \[ 3b = 9 \]
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Divide both sides by \( 3 \) to solve for \( b \): \[ b = \frac{9}{3} = 3 \]
So, the solution is \( b = 3 \).