Question

105-(135-7x):9=97

Answer 1

\(105-\left(135-7x\right):9=97\\ \Rightarrow\left(135-7x\right):9=105-97\\ \Rightarrow\left(135-7x\right):9=8\\ \Rightarrow135-7x=8.9\\ \Rightarrow135-7x=72\\ \Rightarrow7x=135-72\\ \Rightarrow7x=63\\ \Rightarrow x=63:7\\ \Rightarrow x=9\)