How to solve

You own $2$ investments, A and $B,$ which are expected to be worth a combined total value of $$76,528$ in $9$ years. You plan to invest $$36,000$ in $4$ years in investment A$,$ which has an expected return of $12\mathrm{.}94$ percent per year. You also plan to invest $$7,300$ in $7$ years in investment $B,$ which has an expected return of $x$ percent per year. What is $x?$

Input instructions: Enter the number, rounded to $2$ decimal places, that comes before the percent sign. For example, if the answer is $12\mathrm{.}34$ percent, enter $12\mathrm{.}34.$ Do not enter $0\mathrm{.}1234$ or $12\mathrm{.}34\%.$

percent