Solve the Equation $\log _ { 21 } ( x + 84 ) = 3 - \log _ { 21 } x$

question 409

Multiple Choice

Solve the equation.
- $\log _ { 21 } ( x + 84 ) = 3 - \log _ { 21 } x$

• A) \(\{ 63 \}\)
• B) \(\{ 147 \}\)
• C) \(\{ - 147 \}\)
• D) \(\{ - 63 \}\)

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Definitions:

Increasing Rate

A situation where the pace or percentage of a certain variable, such as growth, inflation, or interest, is rising.

Decreasing Rate

Decreasing Rate refers to a situation where the rate of growth or rate of increase in a variable is slowing down over time.

M2

A measurement of the total amount of money available that encompasses physical currency, funds in checking accounts, and near-cash assets like savings accounts and money market funds.

Basic Money Supply

The total amount of liquid money available in the economy, including cash and easily accessible deposits.