Please solve 9,10,11

Please solve 9,10,11 (10)

Dear Student,

Please find below the solution to the asked query:

9 )  We have : $\frac{x - 3}{2} + \frac{{\displaystyle x - 3}}{{\displaystyle 2}} = 4$ , So

$$\begin{gathered} \Rightarrow \frac{x - 3 + x - 3}{2} = 4 \\ \Rightarrow \frac{2 x - 6}{2} = 4 \\ \Rightarrow 2 x - 6 = 8 \\ \Rightarrow 2 x = 14 \\ \mathbf{\Rightarrow }\mathbf{ }\mathit{x}\mathbf{ }\mathbf{=}\mathbf{ }\mathbf{7}\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{ }\mathbf{(}\mathbf{ }\mathbf{Ans}\mathbf{ }\mathbf{)} \end{gathered}$$

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