please assist me with this question on my daughters hw, i wish to see the formula along with how you arrived the answer

Solve the following 109 3 ( 3 x + 7 50 Select the correct choice below and if necessary , fill in the answer box to complete your choice A . The solution is ( Simplify your answer . Type your answer in interval notation . Use integers or fractions for any numbers in the expression . ) OB . There is no solutionConvert to an exponential equation. The equivalent equation is x = log , T? (Type in exponential form.)