question 1\nsolve.\n$\frac{9x}{x + 9}+1=\frac{-1}{x + 9}$

Explanation:

Step1: Multiply both sides by (x + 9)

$3x+(x + 9)=-1$

Step2: Combine like - terms

$3x+x+9=-1$ $4x+9=-1$

Step3: Subtract 9 from both sides

$4x=-1 - 9$ $4x=-10$

Step4: Solve for x

$x=-\frac{10}{4}=-\frac{5}{2}$

Answer:

$x =-\frac{5}{2}$