Problem
$2 x+7 x>9$
Solution
Step 1 ：Combine the terms with x: \( 2x + 7x > 9 \Rightarrow 9x > 9 \)
Step 2 ：Divide both sides by 9: \( \frac{9x}{9} > \frac{9}{9} \Rightarrow x > 1 \)
Step 3 ：\(\boxed{x > 1}\)
Step 1 ：Combine the terms with x: \( 2x + 7x > 9 \Rightarrow 9x > 9 \)
Step 2 ：Divide both sides by 9: \( \frac{9x}{9} > \frac{9}{9} \Rightarrow x > 1 \)
Step 3 ：\(\boxed{x > 1}\)
