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Algebra · Exponential-Equations

Solve 5·2^x = 80

5 \cdot 2^{x} = 80

Step by step

  1. 5 \cdot 2^{x} = 80

    Start from the equation as given.

  2. 5 \cdot 2^{x} - 80 = 0

    Bring everything to one side.

  3. 5 \cdot 2^{x} - 80 = 0

    Isolate the exponential, then take a logarithm of both sides.

  4. x = 4

    Solve for the variable.

Reveal the answer
x = 4