Question 9 Solve the equation, \( x-5=13 \), for the give Answer: \( x= \) Submit Question Question 10 Solve the equation, \( -11=-2+x \), for the gi Answer: \( x=\square \) Submit Question Question 11 Solve: \( x+9=6 \) \( x=\square \) Submit Question

Did you know that equations like these have been used for centuries to solve problems ranging from trade to construction? Ancient Babylonians were adept at using linear equations as early as 2000 BC, often solving practical problems like dividing land or calculating areas—the basic building blocks of algebra! When solving equations, it's easy to forget to check your work. A common mistake is not isolating the variable correctly; for instance, forgetting to carry a negative sign can lead you astray. So remember, double-checking your final answer can save you from small but crucial errors!