What is the answer to 20=10^x ?

The answer to 20=10^x is x=(ln(20))/(ln(10))

The solution is x=(ln(20))/(ln(10))

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20=10^x

20 = 1 0^{x}

x = \frac{ln ( 20 )}{ln ( 10 )}

Decimal Notation

x = 1.30102 \dots

Solution steps

20 = 1 0^{x}

Apply exponent rules

ln (20) = x ln (10)

Solve

ln (20) = x ln (10) : x = \frac{ln ( 20 )}{ln ( 10 )}

x = \frac{ln ( 20 )}{ln ( 10 )}

3^{x + 5} = 100

1 2^{x} = x lo g_{10} (12)

59 = 2 7^{x}

7^{8} + 7^{9} = 8 \cdot 7^{x}

mn = a^{x}