Solve the equation. 5x+7=9x=17 x=

Solve the system of equations with elimination method and what is the type of solution?
$\{\begin{array}{l}x+y=-1\\ 2x=8+3y\end{array}$

3x+6=0

n(n - 4) = 7

Please, help.
The population of a town increased from 1442 to 1868 btwn 2009 and 2012. Find the change of population per year if we assume the change was constant from 2009 to 2012.

Alice, Bernice, and Cheryl shared some stamps in the ratio 8:9:18. Alice received 184 stamps. Find the number of stamps that Bernice and Chery each received.

Provide the solution
1)${\displaystyle \log 3(x^2+2)=3}$
2)${\displaystyle {\log }_3(x+4)={\log }_3(2x-4)}$
3)${\displaystyle {\log }_2(3x+5)\ge {\log }_2(x-9)}$
4)${\displaystyle {\log }_4(x+1)<{\log }_4\left(2x\right)}$

Shannon Sovndal received an 8% raise, which amounted to $100 per month. What was his old wage, and what will his new wage be?