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\log_2\left(3^y-1\right)=x ; 3 \cdot 2^x - 2\cdot 3^y =6

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 Solution

 Videos

Tutorial - Evaluating an expression with one variable ex 8, (-x^2 +1)/3; x = 3

https://www.youtube.com/watch?v=mCQunJV8kU4

Tutorial - Evaluate an expression with one variable ex 1, x + 5; x = 3

https://www.youtube.com/watch?v=Mwv7NpccCmc

Tutorial - Evaluating an expression with two variables ex 8, (3g + 6)/n; g = 5; h = 7

https://www.youtube.com/watch?v=p-K-afavJdw

Evaluating an expression with one variable ex 4, x - 3 - 7x; x = 10

https://www.youtube.com/watch?v=Z7Y0iwwEtII

Equations with rational expressions | Mathematics III | High School Math | Khan Academy

https://www.youtube.com/watch?v=McOMtxI_Jzs

Algebra 1 - Distributive Property, 4x(2x+y); -3(3a^2 -a+7); 2xy(x^2 -3xy+4x); (x/6)(x^2 +5x-9)

https://www.youtube.com/watch?v=4xx87GKdm04

 Main Topic: Numerical value of an algebraic expression

The numerical value of an algebraic expression is the result obtained by substituting the variables by a numerical value given.

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