Understand the concept
Equations remain balanced when both sides change equally.
2x + 7 = 21
- Step 1: Subtract 7
- Step 2: divide by 2.
Final answer: x = 7
3x − 5 = 16
Show the answer
x = 7
Try another similar question and explain each step aloud. Refer to your school syllabus for topic level and notation.