Then the inverse<span> is y = </span>(x + 2)<span> / </span>3<span>.</span>


The value of x⁴ is equal to 79.8006702
Answer and work down below. Let me know if you have any questions
| b+7 | = 10; you add 2 on both sides.
| b+7 | is always positive
b+7 = 10, b = 10-7= 3.
therefore b = 3