Solve the absolute value equation :| 10n - 8| + 16 = 4

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- Absolute value just means if there is any negatives then make them positive.

Equation at the end of this step:

Equation at the end of this step:

- Since it was adding, you do the opposite, which is why we subtracted.

Equation at the end of this step:

- Since it was multiplying, you do the opposite, which is why we divided.

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so then what are you asking?

step-by-step explanation:

the solution of the equation is 2.23 ⇒ answer b

step-by-step explanation:

* lets revise the meaning of exponential function

- the form of the exponential function is y = ab^x, where a ≠ 0, b > 0 ,  

  b ≠ 1, and x is any real number

- it has a constant base b

- it has a variable exponent x

- to solve an exponential equation, take the log or ln of both sides,  

  and solve for the variable

* lets solve the problem

∵

- the base is 7 and the exponent is x

- insert ㏑ in both sides

∴

- use the rule

∴ x ㏑(7) = ㏑(77)

- to find x divide both sides by ㏑(7)

∴

* the solution of the equation is 2.23 to the nearest 2 decimal places