Answer:
0 = 0
Explanation:
2+5x−7=3x−9+2x 
Step 1: Simplify both sides of the equation. 
−2+5x−7=3x−9+2x 
−2+5x+−7=3x+−9+2x 
(5x)+(−2+−7)=(3x+2x)+(−9)(Combine Like Terms) 
5x+−9=5x+−9 
5x−9=5x−9 
Step 2: Subtract 5x from both sides. 
5x−9−5x=5x−9−5x 
−9=−9 
Step 3: Add 9 to both sides. 
−9+9=−9+9 
0=0