Question

What should be the value of b if y= -1 in 7y² – 5y – 2b = 2?
by working explain it to me fast because exam ​

Answer 1

Answer:

5

Step-by-step explanation:

Explanation is attached above

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Answer 2

$7 {y}^{2} - 5y - 2b = 2$

$7 {( - 1)}^{2} - 5( - 1) - 2b = 2$

$7(1) + 5 - 2b = 2$

$7 + 5 - 2 = 2b$

$10 = 2b$

$b = \frac{2}{10}$

$b = \frac{1}{10}$