Final answer:
This is a quadratic equation that needs to be solved for the variable b using the quadratic formula. After simplifying, you will find the two possible solutions for b.
Step-by-step explanation:
This is a quadratic equation that needs to be solved for the variable b. The equation is:
-42 = 7b² - 385b
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Remember to check your answers by substituting them back into the original equation to verify their accuracy.