Question

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solve for b.
3b - 39 = -78
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attempt 1 out of 2
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Explanation:

Step1: Add 39 to both sides

$3b - 39 + 39 = -78 + 39$
$3b = -39$

Step2: Divide by 3 on both sides

$\frac{3b}{3} = \frac{-39}{3}$

Answer:

$b = -13$