What value of x satisfies this equation? log(5x+20)=2

Mathematics

2 answers:

Serggg [28]3 years ago

7 0

Answer:

16 was right

Step-by-step explanation:

Ipatiy [6.2K]3 years ago

5 0

Answer:

Step-by-step explanation:

Given expression:

log(5x + 20) = 2

From the given expression, we are to find x;

Using the rule of logarithm, we can solve this problem;

logₐb = C

b = Cᵃ

So;

log(5x + 20) = 2

this is to base 10;

5x + 20 = 10²

5x = 100 - 20

5x = 80

x = 16

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