(4) Solve the equation \( 3(x+6)+2(x+3)=64 \) and find \( x \). \( \begin{array}{llll}\text { (A) } 8 & \text { (B) } 6 & \text { (C) } 4 & \text { (D) } 3\end{array} \)

Solve the equation \( 3(x+6)+2(x+3)=64 \). Solve the equation by following steps: - step0: Solve for \(x\): \(3\left(x+6\right)+2\left(x+3\right)=64\) - step1: Move the expression to the left side: \(3\left(x+6\right)+2\left(x+3\right)-64=0\) - step2: Calculate: \(5x-40=0\) - step3: Move the constant to the right side: \(5x=0+40\) - step4: Remove 0: \(5x=40\) - step5: Divide both sides: \(\frac{5x}{5}=\frac{40}{5}\) - step6: Divide the numbers: \(x=8\) The solution to the equation \(3(x+6)+2(x+3)=64\) is \(x=8\). Therefore, the correct answer is (A) 8.